A magnitude-5.7 earthquake has killed at least 11 people and injured 192 more in northern Tanzania, authorities say.
The quake struck close to the border with Uganda and Rwanda near Lake Victoria.
Images posted in social media showed significant damage to buildings in Bukoba, a city of more than 70,000 people where most casualties were reported.
“This incident has caused a lot of damage,” Deodatus Kinawila, the District Commissioner of Bukoba, told the BBC.
The US Geological Survey said that the quake struck at a depth of 10km (six miles) at 15:27 local time (12:27GMT).
East Africa’s Great Rift Valley runs along a geological fault line, but major earthquakes there are rare.
A magnitude-6.0 quake struck the Tanzanian town of Arusha, west of Bukoba, in July 2007.