Updated

A busy bridge collapsed Saturday in central Indonesia, killing at least three people and injuring many more as a bus, cars and motorcycles crashed into the river below, police and witnesses said.

Capt. Syafii Nafsikin said search and rescue teams rushed to the scene.

The death toll could climb, he said, adding that many people were believed to be injured.

The bridge linking the towns of Tenggarong and Samarinda in East Kalimantan province was clogged with traffic when the accident occurred, Syaiful, a witness, told local TV station TVOne.

He said he saw at least one bus and a dozen motorcycles plunge into the Mahakam river and survivors swimming to the shore in panic. Several cars were mangled.

"Everyone was screaming," said Syaiful, who like many Indonesians uses only one name.

It wasn't immediately clear why the 10-year-old bridge collapsed.