© Muhammad Hamed/ReutersGeneral view of King Abdullah bin Al Hussein Training Center where a Jordanian officer went on a shooting spree on Monday in Mwaqar near Amman, Jordan, November 9, 2015.
Earlier reports said two Americans and one South African national were killed in the attack, while two Americans and four Jordanians were injured.
The attacker was a senior co-trainer who had the rank of captain, a Jordanian security source said, as cited by Reuters.
The attack took place at Mwaqar camp, funded by Washington - a facility for training Iraqi and Palestinian special security forces. Earlier reports had claimed that the assailant committed suicide after killing the contractors. However, Mohammad Momani said that the attacker had been shot dead shot by security forces.
The attacker's identity has not been officially disclosed. However, he was identified as 29-year-old Anwar Abu Zaid by his brother, Fadi, who spoke to AP. Fadi Abu Zaid said that his brother, who has a wife and two children - a boy and a girl - joined law enforcement when he was 18, was mentally stable and "not an extremist at all." Abu Zaid went to work as usual on Monday morning, his brother said.
An investigation has been launched into "the reasons behind the crime", Momani said in a statement released by Jordan's Petra news agency. The US and Jordan will be closely cooperating on an investigation into the incident, President Obama said in a statement. "We take this very seriously and will be working closely with the Jordanians to determine exactly what happened," Obama said during a meeting with Israeli PM Benjamin Netanyahu at the White House on Monday.
The US State Department said that it has contacted Jordanian authorities. "We have received reports about a security incident at the Jordan International Police Training Center. We are in contact with the appropriate Jordanian authorities, who have offered their full support," State Department spokesman John Kirby said.
It's tough to live a lie. It is physically and mentally demanding to carry out tasks for a cause you have no faith in. After a while you just cannot take it any longer and you have to speak out and declare your truths are not the truths of your employer. Some jobs you can quit, others are not that simple.