WASHINGTON, Oct 21 (Reuters) - The U.S. National

Transportation Safety Board on Tuesday said it is sending a team

of five investigators to Hong Kong to support the investigation

into a cargo plane from Dubai that skidded off the runway and

killed two airport security staff.

The Boeing 747 involved in the deadliest airport

incident Monday in the financial hub in more than 25 years

collided with their security patrol vehicle, fell into the water

and was partially submerged, but all four crew members on board

escaped.

The plane was operated by Turkish freight carrier ACT

Airlines on behalf of Emirates.