At least 18 people have been killed on an Argentine highway when a truck driving on the wrong side of the road crashed head-on into a bus, local authorities say.
Both vehicles immediately burst into flames, leaving twisted metal remains, television images showed.
Firefighters were still working on retrieving the charred bodies for identification.
The collision, which early reports indicated left 15 people wounded, occurred in western Mendoza province, on a highway that links Buenos Aires with Santiago in neighbouring Chile.
"The bus was hit head-on by a truck with apparently stolen plates of Brazilian origin," Mendoza's health minister Matias Roby told a local news channel, calling the incident "heartbreaking".
There were 32 people on the bus, he told the station, including two drivers who were both killed.
