TRAVIS AIR FORCE BASE — A C-5M Super Galaxy landed Thursday night with its nose gear up, prompting what base officials describe as an immediate response to the crash by emergency crews.

No injuries were reported.

The aircraft was returning from a contingency mission when it crash-landed at approximately 7:45 p.m., the base’s Public Affairs Office reports in a press release Friday morning. There were 11 crew members aboard the aircraft. The cause of the incident is under investigation, the base reports. The base still has an operable runway.

Travis spokeswoman Capt. Lyndsey Horn said that initial reports indicate the crew experienced hydraulics issues while trying to lower the landing gear, which caused them to have to conduct the emergency landing, the Air Force Times reports. Horn said the initial report of a hydraulics problem could change as the safety investigation progresses. The possible hydraulic issue was first reported on the unofficial Air Force amn/nco/snco Facebook page.

The C-5M is a strategic transport aircraft and is the largest in the Air Force inventory, with a wingspan of more than 222 feet and a length of 247 feet.

The flight to Travis originated at the Colorado Springs Airport in Colorado.

Horn said maintenance crews at Travis are working to get the C-5 off the runway, and could not say how extensive any damage was to the aircraft and runway, according to the Air Force Times report.

This is believed to be the first time this kind of mishap has occurred at Travis, at least in recent memory, Horn said.

A Super Galaxy previously had a similar nose gear-up landing at Joint Base San Antonio-Lackland in Texas in March 2018 after its nose gear failed.