Relations between Bolivia and Mexico have been strained since Mexico granted asylum to former Bolivian President Evo Morales after he resigned Nov. 10.

The departure of Morales, who was part of a wave of leftists who dominated Latin America's politics at the start of the century, followed weeks of violent protests over allegations of fraud in the Oct. 20 election.

Morales' claim to have won a fourth term last month plunged the country into the biggest crisis of his nearly 14 years in power.