A small plane crashed in a field in eastern Guatemala on Sunday, killing 10 people and injuring four, police said. Eight passengers were killed along with the pilot and co-pilot, said Luis Alberto Valey, a police officer at the scene about 60 miles (100 kilometers) east of Guatemala City. The other four people on board were seriously injured and were airlifted to a hospital in the capital. The nationalities of the passengers have not been determined, but they were believed to be foreigners, Valey said. He said the plane was operated by Aero Ruta Maya, a local airline, but he did not know what type of plane it was. Civil Aviation officials said they did not yet have details.