DHAKA (AFP) -- Small bombs exploded at three railway stations in Bangladesh on Tuesday, including one in the capital Dhaka, but there were no reports of casualties, police said.

Railway officials said leaflets possibly linked to the bombings were found at two stations. One of them called for a break in relations with a minority group of Muslims frequently targeted by Islamic extremists.

"The bombs went off at about 7:00 A.M. (0100 GMT). They created panic but no one was injured, a police official told AFP. They targeted stations in Dhaka, the northern city of Sylhet and the southeastern city of Chittagong.

One leaflet found said "We are ready to die" and another called to cut ties with the Ahmadiyas. Muslim Bangladesh's Ahmadiya community is frequently targeted by extremists in the majority Sunni community who have called on the government to pass a law declaring them "non-Muslim."

In August 2005, more than 400 explosive devices were detonated almost simultaneously in towns and cities across Bangladesh. Leaflets found at previous bombing sites have called for the imposition of strict Islamic law.