Police and witnesses said unidentified miscreants tossed the grenade targeting the mayor from a few yards back of the stage near Tilagar Jame Mosque at about 8:15pm, but it did not explode.

Soon after the incident, the mayor was taken to the mosque. Members of the Rapid Action Battalion cordoned off the area and recovered the grenade.

Contacted, Badruddin Ahmed Kamran, also president of the Awami League (AL) Sylhet City Unit, said the grenade attack was a part of a quarter's continuous attempt to kill him.

On August 7 last year, a bomb attack on an AL meeting in the city's Gulshan Hotel left office secretary of the city unit Mohammad Ibrahim killed and more than 30 injured.

Sylhet district and city units of the Awami League have called a half-day hartal in the city tomorrow protesting the grenade attack on AL Leader and City Mayor Badruddin Ahmed Kamran.

The AL units will also hold a protest rally in the city today.