Ecuador's president, Lenín Moreno, has said he has moved his government from the capital in Quito to the coastal city of Guayaquil amid violent protests over the end of fuel subsidies.

Images from Quito showed protesters hurling petrol bombs and stones, ransacking and vandalising public buildings as well as clashing with the police in running battles late into the night.

"[This] is not a protest of social dissatisfaction faced with a government decision but the looting, vandalism and violence show there is an organised political motive to destabilise the government," Moreno said in televised address on Monday, flanked by the vice-president, defence minister and military top brass.