Mexico 'seriously worried' by Venezuela's plan for new constitution

MEXICO CITY (Reuters) - Mexico said on Wednesday it was "seriously worried" by Venezuelan President Nicolas Maduro's decision to create an assembly to rewrite the constitution, saying the measure deepened a political crisis in the South American nation.

Any attempt to alter a country's constitution that was not done via free and fair elections would constitute an attack on democracy, Mexico's foreign ministry said in a statement.