Prime Minister Sheikh Hasina today expressed her firm resolve to figure out the root of the attack on Holey Artisan Bakery on Friday.

"This is very much unfortunate...we'll find out the root of this attack, we'll figure out who gave arms and explosives to them," the prime minister said when Japanese State Minister for Foreign Affairs Seiji Kihara met her at her official residence Gono Bhaban.

She said, until recently terrorists targeted priests and people like them.

"We've arrested many of the culprits. Such attacks (Friday's attack) were carried out in France, Belgium, India and Japan. Now it happened in Bangladesh," she said.

PM's Press Secretary Ihsanul Karim briefed reporters after the meeting.

The prime minister and Japanese state minister agreed to fight out terrorism together.

About the bodies of the Japanese people killed in the terror attack, the premier said the bodies will be handed over to Japanese authorities after post-mortems.

Seiji Kihara thanked Hasina for efficiently handling the situation.

He said the economic cooperation between Japan and Bangladesh would continue.

Principal Secretary M Abul Kalam Azad and Japanese Ambassador to Dhaka Masato Watanabe were present during the meeting.