LA PAZ, Bolivia (AP) - It's not clear whether Sean Penn knew ahead of his visit to Bolivia of the missions he'd be asked to assume by President Evo Morales.

Cabinet chief Juan Ramon Quintana told reporters after Tuesday's meeting that Morales asked the Oscar-winning actor to defend the chewing of coca leaf before the United Nations, lobby Chile to restore Bolivia's long-lost access to the Pacific Ocean and help persuade the United States to extradite a former Bolivian president.

Penn is already a goodwill ambassador for Haiti, where he has won respect for his post-earthquake charity work.

Asked by reporters about the missions he'd been asked to assume, Penn answered curtly.

"I am ambassador of Haiti," he said.

Penn later showed up for the start of a soccer match with Morales.