The youth's names were not released because of their ages.

Investigators are still attempting to identify and locate the boys who were in the house.

"We're dealing with a lot of nicknames, so we're trying to track down these people," said prosecutor Matthew Torbenson.

The 11-year-old girl told police she was interested in the teenage girl, who looked and dressed like a boy, authorities said in court records. She and two friends went to the teen's house, where the child performed oral sex on three teenage boys, the court records said.

The teenage girl's 40-year-old uncle admitted he also had sex with the 11-year-old and told police that his niece was coaching the child, the records said.

The 11-year-old told police she then went to the basement, where there were about 15 males and "began to choose who she wanted to perform oral sex on," the records said.

The teenage girl told police that the 11-year-old had told her she wanted to perform oral sex on the boys in the house, according to court records. The 16-year-old denied encouraging her.

The teenage girl and the 15-year-old boy were charged with being a party to sexual assault. Torbenson said he will probably seek to have them tried as adults.

The reported attack punctuated Milwaukee's felonious summer, which started with a Memorial Day weekend in which 28 people were shot. Though homicide numbers are lower than 2005, assaults are up by 22 percent and robberies by 36 percent, Police Chief Nan Hegerty told the Milwaukee Journal Sentinel.

Several mob attacks have taken place in Milwaukee's inner city in recent years. In 2002, more than a dozen people, mostly boys, chased a man through the streets and beat him to death with shovel handles, rakes and tree limbs.

A mentally ill man died after being beaten and robbed by a group in 2004. Four days after that attack, a 14-year-old boy was kicked, punched and hit on the head with a piece of lumber after he exchanged words with a girl. He was in a coma for two weeks. Also that summer, four brothers were beaten by a group armed with bats, bottles, sticks and socks stuffed with canned food.

Milwaukee Mayor Tom Barrett described the latest alleged crimes as disgusting and deeply troubling.

"When you have people working in concert and no one in the group is showing conscience, that's a real problem," he said.

"It almost leaves me speechless," said Barbara Nuell-Moore, director of the neighborhood-improvement group Project Respect. "It is just senseless acts of violence. It is inhumane. It is embarrassing to the city of Milwaukee and its people. ... There should be outrage."

Police said they were not sure if the blast was caused by a bomb or by a cooking gas cylinder exploding accidentally.

The blast came days after Indian Prime Minister Manmohan Singh said that intelligence agencies had warned of more terrorist attacks across the country, possibly on economic, and religious targets as well as on nuclear installations.

India has been on a heightened security alert after a series of bombs on commuter trains in Mumbai killed 186 people in July. The attack was blamed on Islamist militant groups with links across the border in Pakistan.

Malegaon has been hit by religious violence in the past. In May, police recovered a cache of explosives and automatic rifles from the region based on information they said was provided by arrested Islamist militants.

Russia's environmental watchdog Rosprirodnadzor said it would investigate the company's activities, including mines in other regions. Highland Gold shares fell 4.5 percent on Thursday, but recovered 0.57 percent early on Friday.

Highland Gold Mining said the bodies of 12 miners had been recovered, though Russia's Emergencies Ministry earlier put the figure at 11.

"The main thing today and now is to save the people and finish off this rescue operation," said Dmitry Yakushkin, the company's communications director.

A spokesman for Russia's Emergencies Ministry said the fire has been localized but still not put out.

"There is still hope of finding survivors," he said.

Many of the rescuers, who are trying to reach the trapped miners through side tunnels, suffered smoke inhalation. Some were taken to hospital.

SMOKE AND GASES

Interfax news agency quoted officials as saying that high temperatures and poisonous gases also complicated the search.

Russian media said the miners had portable breathing devices, which should allow them to hold out for several hours, and air pumped into the shaft improved the chances of survival.

Sixty-four miners were below ground when the fire broke out. Some managed to escape through a tunnel. The fire broke out at a depth of between 85 and 135 meters (255 to 405 feet).

Russia's gold mines have a generally better safety record than the more hazardous coal mining industry plagued by fatal accidents since the collapse of the Soviet Union in 1991.

Rosprirodnadzor head Oleg Mitvol said on Thursday technical violations have been found not only on the Darasun mining complex, but in all other Highland Gold Mining Assets in Russia.

He said checks had been made, violations found, instructions given but "the bulk of them have never been implemented."

In response, Yakushkin said there would be an investigation "but we're not entering into any polemic discussion now."

The Darasun mine is the smaller of Highland Gold's two operational gold mines in Russia. The complex, in the foothills of Chita, produced 11,761 ounces of gold in the first half of this year, around 13 percent of the company's total production.

Highland Gold has forecast total gold output this year of 180,000 to 185,000 ounces. The company is one-fifth owned by Canada's Barrick Gold, the world's largest gold miner.

"The blast killed three people on the spot and two others died in hospital," local police officer Enayatullah Khan told AFP.

He said some 16 people were wounded and that four were in critical condition.

Officials said it was a homemade bomb, fitted with a timer.

District police chief Arif Akram said the bomb was placed in a dustbin at a bus stand near the hospital.

"It exploded soon after a bus arrived and some passengers disembarked," Akram told AFP by telephone.

He said an investigation was under way.

The impoverished province of Baluchistan has been tense since the killing of tribal leader Nawab Akbar Bugti last month.

Bugti, who had led tribal rebels in a violent campaign for autonomy and a greater share of revenue from Baluchistan's natural resources, died in a cave hideout in an army operation on August 26.

The death of the veteran Baluch nationalist sparked violence that left 10 people dead in bomb blasts, attacks and clashes with police.

Baluchistan, which borders Iran and Afghanistan, has seen nearly two years of attacks on pipelines, railway tracks and government installations.

Hundreds of people have died since the unrest erupted in late 2004.