Updated Monday, June 23, 10:05 a.m.
Police in Elmhurst exchanged gunfire with a man who had been shooting at another man, officials said.
No one was hurt in the gunfire, which broke out around 2 a.m. Saturday.
A sergeant and police officer, both in uniform and in a marked police car, were responding to a trespassing call when they saw a man chasing another man and firing shots at him at Lamont Avenue and Forley Street.
The cops jumped from their car and ordered the man to drop the gun, but instead he turned on them, raised the weapon and shot at them, police said.
The officers returned fire, but no one was hit in the exchange, cops said.
The gunman is described as 20 to 25 years old, 5 feet 6 inches tall and with a medium build. When he fled, he left behind a .22 caliber pistol, according to police
There is a $12,000 combined reward leading to the arrest and conviction of the person responsible for the crime, officials said.
Anyone with information is asked to call Crime Stoppers at (800) 577-TIPS (8477). The public can also submit their tips by logging onto the Crime Stoppers website or can text their tips to CRIMES (274637), then enter TIP577. All calls are strictly confidential.