The explosion in the seaside town of Tukuran killed one person instantly and damaged a beachside shop, police said.

According to the police, the store owner immediately informed the police after discovering the victim's body and the damaged motorcycle, Xinhua news agency reported.

Eyewitnesses also said that a utility vehicle was seen fleeing the crime scene after the explosion.

Police are looking into the statements of witnesses that the bomb was hidden inside the storage or top tail box of the motorcycle.

Police said they have begun an investigation to find out whether the deadly blast was a terrorist attack or an accident.