Clashes broke out between two communities over the weekend in Khudadadpur village in SP Supremo Mulayam Singh Yadav's constituency, Mainpuri, leaving three officers injured following which seven persons have been arrested and an FIR registered against another 200.
Police said on Monday that members of a community attacked the house of a person belonging to another community and set it ablaze leading to the clashes.
Later, members of both the communities took to streets and began pelting stones at each other in which Circle Officer K Saroj, SDM Anil Kumar Singh, a revenue officer and others sustained injuries, following which police used tear gas shells to control the situation, they said.
"Seven persons have been arrested and an FIR has been lodged against 21 persons while 150-200 unidentified persons were also named in it," said Additional Director General (ADG), law and order, Daljeet Chowdhury.
Heavy police force, Rapid Action Force (RAF) and Police Action Committee (PAC) have been deployed to check any untoward incident in the area, he said.
Meanwhile, a delegation of BJP leaders led by former DGP (UP) Brijlal and retired IG Rajesh Rai, who were on their way to Azamgarh to ascertain facts of the clash, were detained in Barabanki district.
"The BJP leaders have been detained in Barabanki and they were not permitted in Azamgarh," a senior official said.