Clashes broke out again in Bolivia as supporters of former President Evo Morales oppose the rule of the new interim leader.
Opposition Senator Jeanine Annes assumed the presidency amid a vacuum of power and pledged to hold elections shortly.
Mr Morales 'supporters faced a riot as MPs loyal to him sought to challenge the legitimacy of Mrs Annes' appointment. [1
His resignation followed weeks of protests over a contested outcome of the presidential election. He said he was forced to withdraw but did so willingly "so that there would be no more bloodshed."
The appointment of Mrs. Annes to the temporary post was approved by the Constitutional Court of Bolivia.
What happened in the clashes?
] Police fired tear gas during clashes with supporters of Mr Morales, who headed to the Presidential Palace in La Paz to protest the appointment of Ms Annes.
Some demonstrators used wooden boards and metal sheets as a weapon.
There were chants of "Now, Civil War," the Associated Press reported.
Protests have been reported elsewhere, including in the sister city of El Alto in La Paz and in the coca growing area in El Chapare.
The latest demonstrations came as MPs loyal to Mr Morales tried to challenge Mrs Anez's legitimacy.
They boycotted a congressional session calling for it to formalize its demand for the presidency by preventing a quorum. to hold new counter sessions.
According to police, some lawmakers, allied with Mr Morales, were blocked from entering the country's parliamentary assembly on Wednesday.
How did Jeanine Annes become a leader?
Mrs. Annes, 52, is a qualified lawyer and fierce critic of Mr. Morales. Previously, she was the director of Totalvision television station and has been a senator since 2010, representing the Benny region in the National Assembly.
As Senate Deputy Leader, Ms. Añez assumed temporary control of the body on Tuesday after the Bolivian Vice President and Senate and lower house leaders resigned.
This put her in the next position in the wording of the Presidency in accordance with the Constitution.
Ms Añez again said on Wednesday that she wanted elections as soon as possible and denied that a coup had been carried out against Mr Morales.
She also swears on new commander-in-chief in all branches of the military.
The United States recognized her as a leader, stating that she was looking forward to working with the interim administration of Bolivia.