A military helicopter crashed into a residential area on the fringes of Vietnam’s capital city Hanoi on Monday, killing more than ten military personnel, Reuters reported.

It is yet unknown how many people were in the helicopter.

According to witnesses, ten ambulances transferred the injured from the scene of the incident. 

The nearby houses sustained damages as a result of the crash.

According to the military, no one was hurt from the local residents.

The district military command added that the causes and circumstances of the incident are being investigated.