Ammon News - A passenger bus crash killed at least 16 people on Indonesia’s main island of Java just after midnight Monday, officials said.

The bus carrying 34 people lost control on a toll road and struck a concrete barrier before rolling onto its side, said Budiono, a search and rescue agency chief who goes by a single name like many Indonesians.

The inter-province bus was travelling from the capital Jakarta to the country’s ancient royal city of Yogyakarta when it overturned while entering a curved exit ramp at the Krapyak tollway in Central Java's Semarang city, he said.

“The forceful impact threw several passengers and left them trapped against the bus body,” Budiono said.

Witnesses told authorities the bus was travelling at high speed before the driver lost control.