"News of the plane crash in Indonesia is deeply unfortunate. My thoughts are with the families of the deceased & prayers with those injured," he tweeted.
At least 45 people were killed when an Indonesian air force transport plane Hercules C-130 crashed today in Medan shortly after take-off and exploded in a fireball, leaving buildings severely damaged and cars reduced to flaming wrecks.
The military said there were 12 crew on the plane which had been transporting military supplies to airbases.