The recent deadly accidents in Nepal and Hawaii have not stopped the U.S. Marine Corps to halt flights of UH-1 helicopter or V-22 tilt-rotor Ospreys.

The general in charge of the Marine Corps aviation said it on Tuesday.

Lieutenant General Jon Davis, deputy commandant for aviation, said that both the accidents are being investigated and the initial reviews did not point to any concerns about the safety or reliability of the aircraft.

When the UH-1 helicopter crashed during an earthquake relief measure in Nepal last week, six U.S. Marines and two Nepali soldiers were killed.

Davis said, “I have not seen anything, and I looked, that would cause me pause on the reliability or safety of the airplanes.”

After more thorough review of the incidents, Marine Corps may modify its training protocols.

The UH-1 Y-model helicopter that crashed in Nepal was built by Bell Helicopter, a unit of Textron Inc.

The MV-22 Osprey tilt-rotor was built by the joint venture of Boeing Co and Bell Helicopter, it takes off and lands like a helicopter but it flies like a plane.