A militant from an anti-government group in Bangladesh has been killed in an explosion during a police search for weapons at a hideout.

Mohammad Javed, 24, had been captured by police along with four other militants on Monday. Police said they recovered caches of arms from the five.

“Early Tuesday morning, we took Javed to conduct a search for more weapons at the city’s Kuaish area, where he exploded a grenade. He was injured and died,” said Kusum Dewan, the police chief for the eastern port city of Chittagong.

Javed, according to Dewan, was a “regional head” of an “explosive unit” of the so-called Jamayetul Mujahideen Bangladesh (JMB), a banned group fighting the Bangladeshi government.

Back in 2005, the militant group killed at least 28 people during a series of bomb attacks on courts across Bangladesh.

The latest incident comes less than a week after an Italian aid worker and a Japanese farmer were shot dead in Bangladesh. While Daesh claimed responsibility for the attacks, the Bangladeshi government denied that ISIL was behind the killings and vowed to punish those responsible.