At least three people have been killed and seven injured in a bomb blast in India's north-eastern state of Assam, police say.
Violence in Assam has increased since September
The bomb was placed in a car park at a railway station in the state capital Guwahati, they said.
The blast site is just metres from an army camp where soldiers transiting through the city make a stopover.
Police say they suspect rebels from the United Liberation Front of Assam (Ulfa) planted the bomb.
Violence in Assam has increased since September when peace talks between Ulfa and the federal government broke down.
At least 20 people have since been killed in different incidents.
Ulfa accuses the central government of "plundering" Assam's mineral and forest resources and neglecting local development.
It has been waging an armed rebellion since 1979.