Four people were injured in a blast that hit a Tajik entertainment center in the early hours of Monday, a local interior ministry official said.

"The four injured have been taken to hospital," he said, adding that investigators have been working at the scene to establish the kind of the explosive device.

The blast reportedly took place at 00.00 local time (19:00 GMT Sunday).

Earlier from two to five people were reported injured in the blast.

On Friday, one police officer was killed at 30 other people were injured when a car packed with explosives crashed into a police station in Tajikistan's second largest city of Khujand. The blast completely destroyed the right section of the building housing the local organized crime department.

There was no information on the driver involved in the suicide car bombing.

DUSHANBE, September 6 (RIA Novosti)