Thousands of supporters of former Bolivian president Evo Morales converged on La Paz on Monday after a six-day march through the Andes, clashing with riot police in scenes that represent the gravest political test yet for President Rodrigo Paz, six months into his term. Dynamite blasts echoed through the city centre as security forces responded with tear gas, while demonstrators hurled fireworks and stones and chanted calls for the president's resignation. At least 90 people were arrested, and government footage showed protesters storming and looting government offices.

The march — described by its organisers as a