New Delhi, Nov 4 (ANI): Security was tightened in Trilokpuri area on the occasion of Muharram on Tuesday. Along with the local police, Rapid Action Force (RAF) personnel were also seen on patrol in the area. The police have imposed restrictions on the display of weapons- swords, lathis and knives - during the festival and will be keeping a close watch on the procession. The measures have been taken in the wake of last week's communal clashes in the area which had left five injured including two teenagers. Over 1,000 policemen and paramilitary personnel have been posted at Trilokpuri area after the clashes took place. Every year, Muslims observe Muharram to mourn the death of Imam Hussein ibn Ali, the grandson of Prophet Mohammad, in the battle of Karbala.