India, Dec. 22 -- Bangladesh Police said on Sunday that they have no concrete information on the whereabouts of Faisal Karim Masud, the prime suspect in the killing of youth leader Sharif Osman Hadi.

The statement came a day after Hadi's Inqilab Mancha party issued a 24-hour ultimatum to the interim government on Saturday, demanding visible progress in arresting those responsible for the murder.

At an emergency press conference at the Ministry of Home Affairs, Additional Inspector General of Police Khandaker Rafiqul Islam said law enforcement agencies are actively trying to locate Masud, identified as the gunman in the shooting, according to UNB.

"We do not have specific details about Faisal's last location. Our forces and intelligence...