Complex sentence: A person named Hijratullah, believed to be part of the group of attackers, was apprehended by local citizens when he was seen hiding in the nearby fields at first and then moving slowly towards the rescue helicopters with two grenades in his hand.
Split into simpler sentences: A person named Hijratullah, believed to be part of the group of attackers, has been arrested from the attack site. He was apprehended by local citizens when he was seen hiding in the nearby fields at first and then moving slowly towards the rescue helicopters with two grenades in his hand.