A bomb blast Tuesday killed at least seven people in eastern Turkey.

Security sources said the device went off at a point along a road in the city of Tunceli as a military vehicle was passing by. At least six soldiers and one civilian were killed. Another vehicle was also hit by the blast.

Smoke from the blast could be seen over much of the city, as ambulances rushed to the scene.

There was no immediate claim of responsibility, but authorities said they suspect Kurdish rebels.

Last week Kurdish militants killed 10 soldiers and wounded at least 60 in a rocket attack on a military convoy in the southeastern province of Bingol.