A CRACK IS SEEN on a window of Southwest Airlines Flight 957 after an abrupt landing in Cleveland on Wednesday. The cracked window forced the Chicago-to-Newark, N.J., Flight 957 to land in Cleveland. There were no reports of injuries after the jet landed safely after making an abrupt turn toward Cleveland while over Lake Erie.

CLEVELAND (AP) — Passengers on a Southwest Airlines plane first heard a loud pop and then scurried away when they saw a jagged crack in a window that forced the jet to land in Cleveland on Wednesday.

Some on board immediately thought back to just two weeks ago on April 17 when a jet engine blew apart and broke a window, leading to a woman being partially sucked out and killed aboard another Southwest flight.

“It made you nervous because something like this just happened,” said passenger Paul Upshaw of Chicago, who was about two seats from the window. “We didn’t know if it was going to crack open.”

There were no reports of injuries after Flight 957 heading from Chicago to New Jersey landed safely Wednesday after making an abrupt turn toward Cleveland while over Lake Erie, according to tracking data from FlightAware.com.

Some of the plane’s 76 passengers told The Associated Press that the crew quickly checked the window near an emergency exit and handled the situation smoothly.

“People just started scattering,” said Upshaw, who added there was no yelling or screaming. “We didn’t panic.”

Dallas-based Southwest said that the plane was diverted to examine damage to one of the three layers in the window, but didn’t immediately release details on how it was broken. Photos taken by passengers and posted on social media showed one window with a large, jagged crack.

Southwest Airlines spokeswoman Brandy King said the plane never lost cabin pressure — which would have triggered oxygen masks to drop down for passengers — and that the pilots did not declare an emergency before landing.

There were no other mechanical problems with the Boeing 737, which was taken out of service, King said. The plane was built in 1998, and King said it has flown about 40,000 “cycles” or flights, “but the damaged window had been previously replaced and continues to receive regular checks as part of our maintenance program.” She said it was inspected last month.

The timing of the incident could hardly be worse for Southwest. Executives said last week they have seen ticket sales slow since the engine failure that sent debris flying into a plane, breaking a window and killing a passenger.