Muzaffarnagar: Muzaffarnagar is on the boil one time again after four people were killed in two separate incidents of communal clashes on Wednesday night. Three men were killed in a clash between two groups from two neighboring villages while in a separate clash one woman was killed. Both the incidents took place in the Budhana area which falls in rural Muzaffarnagar. Section 144 has been imposed in the area while eight people have been arrested. The incident appeared to be the fallout of the communal tension in the region. Muhammad pur rai singh village was one of places affected by the riots in September. The PAC and police force presence has been increased in the area. These fresh clashes come almost two months after the Muzaffarnagar riots in which more than 60 people were killed.