Mohammad Insaf Ali, 50, ansar commander of ward No 48 of the Dhaka City Corporation, was going to his post from his Sanatangarh residence when a gang of around five youths sprayed him with bullets at 8:00am, said his family members.

Witnesses said the killers fled from the spot after confirming Insaf's death.

Locals rushed Insaf to the Sikder Medical College Hospital where the doctors declared him dead on arrival.

Police sent the body to the Mitford Hospital for autopsy. Hospital sources said Insaf received at least 10 bullets in the body.

Anisur Rahman, an ansar member of Ali's regiment, told reporters Insaf was also a police informant and president of the local Baitul Aman Jam-e Masjid.

Insaf's family members were clueless about the reason behind the killing. But Anis said unknown men, calling his cell phone, had been threatening to kill him.

Locals staged a demonstration in protest against the killing, and tense situation was prevailing in the area. Additional police forces were deployed in the area.

The Hazaribagh police could not arrest anyone in this connection and no case was filed as of 7:00pm last evening.

Meanwhile, Siraj Miah, 28, a shop-owner at Tekpara in Badda and a resident of the Middle-Badda area, was returning home with his wife, Kalpana, and son, Azizu, from the Wonderland Amusement Park in Gulshan by rickshaw when two muggers on a motorbike barred his way at 3:30pm.

As the muggers tried to snatch gold ornaments from his wife, Siraj captured one of them and cried out for help. Another mugger shot him and fled the scene, snatching the ornaments.

Siraj was rushed to the Dhaka Medical College Hospital where doctors stated his condition to be critical.

Meanwhile, the Dhanmondi police recovered the body of a person aged around 30 from the Dhanmondi Lake near the Taqwa Mosque at 7:00am.

Police said the body was badly deformed as killers had dumped it several days ago.