muzaffarnagar four people were killed and three others received injuries after a mysterious blast took place inside a scrap dealers shop in the civil lines area of muzaffarnagar district on monday morning a team of the antiterrorism squad ats rushed to the spot for a probe into the explosiondig sharad sachan said it is too early to reach to a conclusion but there was smell of gunpowder at the explosion site a dog squad was pressed into service at the blast sitethe deceased have been identified as nisar ahmed 55 the shop owner and three passersby shahzad ahmed nazim ali and mohammad nawajish all residents of muzaffarnagar three others yusuf kesar and noushad sustained grievous injuries in the incident according to the police the blast occurred at 940am in the kachchi sadak area of civil lines when nisar was trying to cut a piece of scrap inside his shopwe heard a deafening bang and rushed out of our homes and saw people profusely bleeding lying on the road said abaad ahmed an eyewitnesssenior superintendent of police ssp anant deo tiwari said a team of ats has been called to probe into the incident we also informed the bomb disposal squad and army headquarters in meerut the content of the explosives will only be ascertained once the investigation is over