Four people were killed on Saturday when their car plunged into a ravine in Shangla, police said.
The deceased were going to Kohistan from Bisham.
Local police reached the scene and shifted the dead bodies to nearby hospital for medico-legal formalities.
It is not clear what caused the accident, but reckless driving such as speeding and violation of traffic laws are top reasons for most of the road mishaps.
The identities of those killed in the crash have not been released.