(Newser) – At least five people are dead after a military cargo plane crashed onto a busy highway in Savannah, Georgia, Wednesday, the AP reports. The Air Force says the plane was an Air National Guard C-130 cargo plane that belonged to the 156th Air Wing out of Puerto Rico; the victims are National Guard members from Puerto Rico. It's not clear what caused the plane to crash shortly after taking off from a Savannah airport around 11:30am, bound for Arizona. "I have been briefed on the U.S. C-130 'Hercules' cargo plane from the Puerto Rico National Guard that crashed near Savannah Hilton Head International Airport," President Trump tweeted. "Please join me in thoughts and prayers for the victims, their families and the great men and women of the National Guard." Per CBS News, the plane "narrowly missed" people on the ground.