Three people were injured after a bomb or grenade was thrown under a vehicle in the Cambodian capital Phnom Penh on Tuesday evening, according to local media.
A motorcyclist threw an explosive device under a passing Lexus, according to Cambodian news portal Fresh News. Authorities have yet to apprehend the suspect.
Photos of the crime scene show what appears to be a grenade pin on the side of the road near the blast site.
Grenades are commonly used by would-be assassins in Cambodia, most famously in an attempt to assasinate opposition leader Sam Rainsy in 1997.
Phnom Penh's city police have yet to issue a statement on the explosion.