Updated

Police in Iceland say one person was killed and 12 more were critically injured after a bus carrying 46 Chinese tourists skidded off the road after a rear-end collision with another vehicle.

The Icelandic blood bank sent out an alert for donations of blood type O following Wednesday's accident on Route 1, a national road that runs around the island.

The car and bus crashed near the Eldhraun lava field about 250 kilometers (155 miles) east of Reykjavik, Iceland's capital.

Police say the bus skidded off the road and flipped on its side, trapping two passengers underneath. One died on the scene.

Three helicopters were used to transfer the most severely injured to a hospital emergency room in the capital.