Anti-government protests intensified in Bolivia on Monday as demonstrators clashed with riot police in La Paz demanding the resignation of President Rodrigo Paz.

Riot police fired tear gas to stop protesters from reaching the capital's main square, while demonstrators hurled stones and explosives.

Thousands of farmers, miners, teachers and members of Indigenous groups have joined weeks-long protests demanding wage increases, economic stability and the resignation of Paz, whose less than six months old administration has struggled to contain Bolivia's worst economic crisis in decades.

The country's year-on-year inflation hit 14% in April.

"We want him to resign because he's incompetent. Bolivia is going through a moment of chaos," 60-year-old farmer Ivan Alarcon told the AFP news agency.