Police have arrested the bus driver involved in last night's fatal accident in Tai Po.

The bus reportedly lost control and flipped onto its side near Tai Po Mei about 6.15pm.

Fourteen men and four women died at the scene while 63 men and three women were injured and sent to hospitals where another of the men later died.

The 30-year-old male driver was arrested for dangerous driving causing death and dangerous driving causing grievous bodily harm.

Witnesses should call Police on 3661 3344 or 9460 0523.