Dhaka, Sept. 26 -- Police have arrested four people over the demolition of an NGO-run health centre in Dhaka's Mirpur-1.

The four were arrested in a series of raids on Friday night, Shah Ali Police Station chief Jahangir Hossain said.

Investigators say the suspects have admitted to taking part in the attack for money.

"We analysed several CCTV recordings, but the attackers' faces were not clear," said Jahangir.

"During the investigation, we found evidence of their involvement and arrested four people."

Jahangir could not immediately provide the names or identities of those arrested.

He said the four had initially admitted to police that they took part in the attack in exchange for money. They have been sent to court.

The arrests ca...