Sri Lanka's military says a fire has broken out at an army camp near the capital, causing explosions at the camp.

Military spokesman Brig. Jayanath Jayaweera says the fire broke out at the Salawa army camp in Kosgama on Sunday evening. The fire spread to the ammunition dump, causing explosions.

Jayaweera says it is not yet known whether there are any casualties.

Local television channel Sirasa says that officials are evacuating residents living close to the camp, and that a main road near the camp has been closed to traffic.

Kosgama is about 35 kilometers (22 miles) east of Colombo, Sri Lanka's capital.