Half a dozen assailants have ransacked the headquarters of Venezuela’s opposition leader Maria Corina Machado. It comes as Human Rights watch said at least 20 people have died in post-election protests.

Masked assailants ransacked and vandalized the headquarters of Venezuelan opposition leader Maria Corina Machado on Friday, the party said.

The development comes after disputed elections in Venezuela saw President Nicolas Maduro claim victory, while protests have broken out in Caracas.

Friday’s raid occurred at around 3 a.m. local time (0700 GMT), Machado’s party, Vente Venezuela, said.