Insurgents fired an M79 grenade at the Narathiwat Provincial Hall Friday, in what are seen as a stepped-up attacks ahead of election day.

Police said an unknown number of insurgents fired the grenade with a M79 launcher at the Narathiwat Hall in the Government Complex in Muang district at about 11.20am.

The grenade missed the hall and landed on the ground in front of the national flag pole. No one was hurt and the explosion did not cause any damage to the building, police said.

Read more: The Nation