(Adds new information about the number of dead and injured, and the cause of crash)
MEXICO CITY, May 10 (Reuters) - Nine people are dead and 30 people remain hospitalized after a crash between two buses early on Sunday morning in northeastern Mexico, according to a government statement.
Eight passengers died at the scene and a ninth person died at the hospital, the government said.
The crash occurred on a highway in the state of Tamaulipas. One of the bus drivers, who was speeding, veered into the opposite lane, slamming into the other bus, according to the statement.
Reporting by Joanna Zuckerman Bernstein; Editing by Chris Reese