The head of a Bangladeshi Islamist group accused of carrying out a deadly siege at a cafe in July died during an arrest operation earlier this month, an elite security unit said Friday.

Abdur Rahman died in hospital on October 8 after jumping from the fifth floor of a building on the outskirts of Dhaka while attempting to evade arrest, the Rapid Action Battalion (RAB) said in a statement.

The identity of Rahman, who was leader of the Jamayetul Mujahideen Bangladesh (JMB), was later confirmed through his possessions and by his family.