The U.S. Geological Survey says that a 7.9 earthquake has struck near Tonga, prompting a tsunami warning for adjacent islands in the South Pacific.

The USGS says that the quake struck about 130 miles (200 kilometers) south-southeast of the Tongan capital of Nuku'Alofa at a depth of 6.2 miles (10 kilometers). It struck Friday morning local time.

There were no immediate reports of injuries or damage.

The Pacific Tsunami Warning Center has issued a tsunami warning for neighboring islands, but it was not immediately known if a tsunami had been generated.

It also advises that some coastal areas of Hawaii could see a rise in sea level and strong currents lasting up to several hours.