New Delhi: An Mi-17 chopper of the Indian Air Force today crashed near Tawang in Arunachal Pradesh, killing all seven personnel on board.

The crash of the Mi-17 V5 took place at around 6 am when it was on a maintenance mission, reports said.

"A Court of Inquiry has been ordered to ascertain the cause of the accident," an official said.

Rescue teams reached the crash site in Tawang near the Indo-China border and admitted the injured personnel to a local hospital.