LANDI KOTAL, Feb 23: Four khasadars were killed and three other sustained injuries when militants attacked a security checkpost here on Wednesday night.

Officials said that a group of militants riding a pick up truck and armed with firearms attacked the Cheengai checkpost on the main Peshawar-Torkham road at around 10.15pm.

The brazen armed attack left four khasadar perssonel killed on the spot while three of their colleagues sustained injuries with one stated to be in critical condition.

Meanwhile, security forces shot dead two militants after they put up armed resistance during a search operation in Bara on Wednesday.

Official sources said that two suspected militants riding a motorbike opened fire when security forces signaled them to stop for checking. The security personnel returned fire killing both of them on the spot.

The personnel also recovered arms and ammunition from them and took the motorbike into custody. Nobody has claimed the bodies so far.

Security forces also rounded up at least 40 suspect militants in Sipah during a search operation.