A march to commemorate Youth Day in Caracas, Venezuela turned violent as supporters and detractors of President Nicolas Maduro battled at the peripheries.  At least two people were shot and killed as the trouble spread out.

It’s the worst rioting since Nic Maduro was sworn in as president last April.  A pro-government activist and at least one student were killed in a shootout, officials said.  Officials blamed conservative instigators for trying to recreate the conditions that led to the failed coup against then-president Hugo Chavez in 2002.

“They are trying to create a dogfight, where Venezuelans fight against Venezuelans,” said President Maduro, who promised to do all in his power to restore peace and promised that there “would be no impunity” for those who violated the law.

National Assembly leader Diosdado Cabello also accused right-wing activists of carrying out the acts of violence.

“Fascism has murdered a comrade,” Cabello said on national TV.

But a leading opposition congresswoman, Maria Corina Machado, said violence had erupted as anti-government conservative students were surrounded by pro-government activists.  And opposition leader and frequent presidential candidate Henrique Capriles appealed for calm.

“Violence will never be the way!  We are confident that a large majority refuses and condemns it,” Capriles wrote on social media.