According to Deber, the fire was contained two hours later. Protesters said that the fire had been set by 10 activists.
The protesters have also damaged the building of the National Telecommunications Company by throwing stones and other objects at it, the Prensa media outlet reported.
Last week, the Bolivian Supreme Court gave Morales and Vice President Alvaro Garcia the green light to run for a fourth term.
READ MORE: Drug Lord, Ex Escobar Supplier Suarez Escapes From Custody in Bolivia — Reports
In February 2016, Bolivia held a referendum on giving Morales an opportunity to run for a fourth presidential term. Its results showed that 51.3 percent of those who voted rejected the idea, which 48.7 percent supported it. Morales initially recognised results of the vote but later characterised them as a "victory of lies".