At least 14 people have been killed and several others wounded in a bomb blast in Pakistan's biggest city, Karachi.
Police said they suspected Thursday's explosion was caused by a planted bomb.
"We are gathering details," they said.
Al Jazeera's Kamal Hyder said a bomb squad is seeking to ascertain whether the explosive had been a large bomb or a hand grenade as earlier reports had suggested.
"The attack appears to be linked to the turf war that has been going on for some time and was also alleged to be a gambling den.
"According to some estimates, up to 300 people were at the location at the time of the explosion."
The number of dead is likely to rise, with up to 35 people injured, our correspondent said.