Two people employed at the US embassy in Mexico have been wounded after their car was mistakenly fired on by police south of Mexico City.

The Mexican Navy said the US personnel were on a main road to the city of Cuernavaca when the shooting happened.

Details are still unclear, but the navy said the US vehicle had been fleeing from gunmen in another car.

The US state department said it was working with Mexican authorities to investigate the incident.

Spokeswoman Victoria Nuland said the two men were receiving "appropriate medical care and are in stable condition".

The BBC's Zoe Conway reports.