New Delhi, Oct 25 (IANS): Four people were shot at during a clash between two communities over a petty issue in east Delhi's Trilokpuri area, police said, adding that 33 people have been arrested.

"Four persons were reportedly injured by gun shots but these were not fired by police. We are trying to identify who were behind the firing," a police officer told IANS.

The firing took place around 4 p.m. Saturday, said the officer.

Earlier, police said ten people were arrested Friday and 23 Saturday for rioting in the area.

A minor clash occurred between the two communities late Thursday over rituals for the Diwali festival in Trilokpuri's B-Block.

Two groups of people pelted stones at each other. Police immediately rushed to the area and pacified the people.

A group of persons again started pelting stones Friday on the other group aggravating the tense situation. Thirteen police personnel were also injured in the stone pelting.

A few people from both the groups were injured and admitted to separate hospitals in east Delhi.

Police, Rapid Action Force and Central Reserve Police Force personnel have been deployed in the area.

The situation was tense Saturday morning too. Over 30 police vans, water cannons and riot control vehicles have been stationed in the area.

The Intelligence Bureau and other agencies are also keeping a watch on the situation. A few days ago the intelligence agencies had warned the states of the possibility of communal clashes during the festival season.