Two people have died after a plane crashed into a building near Honolulu Airport.

The Honolulu Fire Department said in a news release that authorities responded to a “plane crash” at 3129 Ualena Street – near Daniel K. Inouye International Airport – just after 3 p.m. local time on Tuesday, Dec. 17.

“The fire was declared under control and extinguished at 3:57 p.m. Unfortunately, the two souls passed away on board the aircraft,” the department added.

The Federal Aviation Administration said in a report that the plane crashed into a vacant building “shortly after departing” on a “training flight.”

The National Transportation Safety Board, which is investigating the crash, said the flight crew reported control anomalies shortly after takeoff, according to Hawaii News Now.

One of the two pilots aboard the Kamaka Air training flight told air traffic controllers shortly before impact that they were “out of control,” FOX affiliate KHON reported.

According to ABC affiliate KITV, the family has identified one of the pilots as 22-year-old Hiram deFries of Papakolea. He graduated from Punahou School in 2020.

The second pilot was identified as Preston Kaluhiwa, who previously graduated from Kamehameha schools, KITV reported.

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Gov. Josh Green expressed his condolences to those affected by the crash. “Jaime’s and my thoughts are with the pilot and passenger and their families, as well as everyone who experienced this traumatic event,” he said in a statement.

Services have been made available to assist those who witnessed the incident “trial,” the governor added.

According to KITV, Honolulu Mayor Rick Blangiardi on Tuesday thanked first responders “who arrived on the scene quickly to provide assistance.” The city is “ready to support Kamaka Air and all those affected in any way possible,” he added.

“I am deeply saddened by the tragic plane crash on Oahu this afternoon that claimed the lives of two Kamaka Air employees,” Blangiardi said. “On behalf of the City and County of Honolulu, I extend my deepest condolences to the families, friends and colleagues of those we lost.”

The mayor added: “This heartbreaking incident reminds us of the dedication and risks taken by those who help keep Hawaii’s vital supplies moving.” Our thoughts and prayers are with everyone during this incredibly difficult time affected by this tragedy.”

The Hawaii Department of Transportation team “will provide any necessary assistance to federal officials” as the investigation into the crash is conducted, Green said in his statement.

The cause of the crash “may not be known for some time,” the governor added.

Kamaka Air CEO David Hinderland said in a statement that the company has made itself available to authorities during the investigation, according to Hawaii News Now.

“At this time, we ask for your patience as you understand the urgency of obtaining accurate information that not only provides a clear understanding of what is happening, but also ensures that the information is handled appropriately,” Hinterland said .

Kamaka Air did not immediately respond to PEOPLE’s request for comment.