Nine suspected militants were killed on Tuesday during a rad in Bangladesh's capital Dhaka, police said.Some militants were also arrested in the raid with explosives and grenades, Xinhua news agency reported.Officials said the militants fired and hurled hand-made grenades as policemen and Rapid Action Battalion (RAB) members stormed the hideout at about 5.30 a.m in the city's Kalyanpur area.Communication equipments and jihadi books were also seized.