An Alaska Air flight carrying 176 passengers made an emergency landing after reports of an unusual vibration and metal flying off the plane's engine, report says

• An Alaska Airline flight made an emergency landing in Seattle after reports of an "unusual vibration," reports say.
• Passengers on the plane posted videos and images of the metal paneling flying off the engine.

An Alaska Airlines flight going to California was forced to return back to Seattle after reports of an " unusual" vibration.

Alaska Airlines Flight 558, carrying 176 passengers and six crew members, was forced to divert its flight from Seattle to San Diego on Tuesday after the crew reported an unusual vibration coming from the left side of the plane shortly after taking off, according to reports by 9news.

Passengers on board the flight revealed videos and images of metal ripping off the plane's engine during the emergency landing at Tacoma International Airport in Seattle.

According to 9News, the flight landed safely, but the metal paneling that covers the engine detached from the plane when it landed.

"The two pilots who operated the flight have more than 32 years of combined flying experience," Alaskan Airlines wrote in a statement provided by USA Today. "They, along with our flight attendants, handled the incident with tremendous professionalism and care. We also greatly appreciated the patience of our guests during this event."

According to USA Today, the aircraft is out of service while the airline safety team investigates.