At least 52 people were killed and 11 others were injured Thursday after a passenger bus fell into river in northeast Pakistan-controlled Kashmir, local police said.

According to reports, the ill-fated bus coming from Muzaffarabad, the capital city of Azad Jammu and Kashmir (AJK), plunged into the Jhelum River near Ghari Duppata area after driving some 25 km away.

Due to heavy rain and overspeeding, the driver lost control of the bus before it went into river, said Muhammad Imtiaz, the Deputy Commissioner of Muzaffarabad.

Rescue workers and ambulances have been sent from Muzaffarabad to provide first aid to the injured. The search operation is underway for the missing persons.

Eye-witnesses said that the bus was jam packed and overloaded as passengers were ridding on the roof as well.

AJK Prime Minister Sardar Ateeq Ahmad Khan constituted a committee to probe the incident and announced compensation of 50, 000 rupees (about 600 U.S. dollars) each for the deceased and 25, 000 each for the wounded.