DENVER — Transportations safety officials are investigating a cracked windscreen, which made a United Airlines flight divert from its route Thursday.

The National Transportation Safety Board said a Boeing 737 Max 8 took off from Denver International Airport around 5:51 a.m. 

When flight 1093 was near Moab, Utah, it diverted from its original destination of Los Angeles International Airport to Salt Lake City International Airport due to a crack in the windscreen. It’s not yet clear what may have caused the crack or how significant the damage was. 

The NTSB says they’re looking into the radar, weather and flight recorders while examining the windscreen. 

There were no confirmed injuries due to this incident and United Airlines told outlets the plane landed safely after being diverted. Another plane arrived to take the passengers to Los Angeles.

While no information about what cracked the windscreen is available at this time, the plane is scheduled for a Sunday evening flight from Salt Lake City International Airport to Chicago Rockford International Airport, according to flight trackers.

United Airlines said the plane had 134 passengers on board and six crew members. They also said aircraft windshields are layered and are designed to function even a layer may be damaged. 

No other information about the investigation is available at this time. 

It comes as the government shutdown is putting strain on air traffic controllers and other parts of airports day-to-day happenings. 

While air traffic controllers are considered essential by the government and required to work through a shutdown, the number of requests for sick leave tend to rise dramatically as a government shutdown drags on because they are working without pay. 

Transportation Secretary Sean Duffy said in a press conference Oct. 6 that the Federal Aviation Administration was already tracking an uptick in air traffic controllers calling out sick. 

It’s unclear if the government shutdown impacts investigations conducted by the FAA or NTSB.