US President Barack Obama, who is on holiday in the island state of Hawaii, was briefed Sunday on the "tragic accident that took the lives of a number of American citizens in Egypt, and the US government's ongoing efforts to support the victims and their families," the White House said in a statement.
The US embassy in Cairo said it was "deeply saddened by the traffic accident in Aswan that has led to deaths and injuries among American tourists." It did not provide a toll, and neither did the White House in its statement.
The embassy said the injured were being moved by military transport to Cairo. The police official said some of the injured tourists would be airlifted in the afternoon to a hospital in Cairo that often treats injured tourists.
Eight American tourists were killed and 21 injured on Sunday when their bus collided with a truck near the southern Egyptian city of Aswan, police and the official MENA news agency said.
The bus carrying 37 tourists from the United States was headed to the ancient Egyptian Abu Simbel temples when it collided with a damaged truck parked on the side of the road, MENA said.
A police official said six of the dead were women. The bus driver and a tour guide were also injured in the crash, which occurred early in the morning about 30 kilometres (18 miles) from Aswan.
Four tourists were in critical condition, the police official said, adding that the injured were taken to a military hospital in Aswan.
Seventy-nine tourists on board two other buses in the convoy were unharmed, MENA reported.
(Edited by Ahram Online)