BUFFALO -- Brake problems sparked a small fire on a Greyhound Bus on a Buffalo expressway.

About 30 people were on the bus Monday morning and all got out safely. They waited alongside the Kensington Expressway until a substitute bus came and picked them up.

The bus was headed to Rochester, Syracuse and Albany.

Buffalo police say the brakes on the bus locked up about 6:20 a.m., causing a fire that was quickly extinguished by firefighters.

The incident temporarily shut down two outbound lanes.