Police in Bangladesh say they have arrested the alleged top bomb-maker from an outlawed Islamist militant group in the capital, Dhaka.
Police officials say security forces from the elite Rapid Action Battalion raided the home of Jahidur Rahman late Thursday, prompting a standoff that lasted several hours.
Police say his wife, Sharmin, detonated an explosive in an effort to prevent his arrest, blowing off her own right hand and wounding their two young children.
Rahman is also known by the alias Boma Mizan.
Police accuse him of being the senior explosives expert for Jamaat-ul-Mujahideen Bangladesh, a banned militant group blamed for a series of deadly bombings in 2005, plus several more recent attacks.
After his arrest, police raided a second house in the capital and said they found a large quantity of explosives and bomb-making materials.
Authorities executed the leaders of Jamaat-ul-Mujahideen Bangladesh in 2007.