Four people fell prey to incidents of firing and accident on Sunday at separate spots in the mega city while three others sustained injuries in cracker attack. Police said that Arsalan 23, was gunned down by robbers when he resisted the robbers in Maskan Chorangi area of Gulshan Iqbal. His body was shifted to hospital for autopsy, police said. In Abdullah Ghot area, Abdullah Jan 40 was sprayed with bullets by his opponents and killed him at the spot. Police said that personnel enmity was the cause of the incident. In yet another incident, two youths hailing from Sangolein area Lyari were crushed to death while riding on motorcycle in Shershah Pul area of the city. Both the youths were shifted to Jinnah hospital but both succumbed to injuries. Meanwhile, up to three people were injured in cracker attacks in Qasba Colony and Lyari. Police said that unidentified motorcyclists hurled a cracker on a medical store in Qasba Colony locality of Orangi Town, injuring one person. Two more people were injured in a home-made cracker attack at Kamila Stop in Lyari area. Panic gripped the area after the attack and shops and market were shut down. Large contingent of police reached the area and started raiding various suspected spot in the area to nab the culprits but yet no arrest was made till filing of the report.