Agartala, Aug 10 - Nine more tribal separatists have surrendered to the security forces in Tripura after fleeing from their bases in Bangladesh, officials said here Monday.

With the latest surrender, 17 dreaded militants of banned All Tripura Tiger Force (ATTF) have laid down their arms and ammunition during the past one week after deserting their camps in neighbouring Bangladesh.

'The Bangladesh-trained militants led by their self-styled captain Budha Debbarma, 27, surrendered before senior Border Security Force (BSF) and Assam Rifles officers late Sunday,' police spokesman Nepal Das said.

The surrendered militants, who include four women, fled from their camps in Satchari in Sylhet district in northeastern Bangladesh, opposite Khowai township in western Tripura.

They also deposited a large cache of arms and ammunition, including AK series rifles, one mortar and foreign made ammunition.

Militants belonging to various rebel groups in the northeast have set up about 100 camps and hideouts in different parts of Bangladesh, specially Sylhet district and Chittagong Hill Tracts (CHT) bordering India's Tripura, Mizoram and Meghalaya states.