On May 22, the 2013 Southern Vietnam and Cambodia blackout occurred. The careless movement of a truck deployed to plant trees in New Binh Duong City urban area was the direct cause for a massive power outage in the southern region of Vietnam. When moving a tree on Wednesday afternoon, the truck driver let the tree bump onto a line in the national power grid (500 kV), causing an outage in 22 provinces and cities in the southern part of Vietnam, according to Vietnam Electricity, 8 hours fully restored.