DAKAR, Senegal (AP) — Clashes between police and supporters of Senegalese opposition leader Ousmane Sonko left nine people dead, the government said Friday, with authorities issuing a blanket ban on the use of several social media platforms in the aftermath of the violence.

The deaths occurred mainly in the capital, Dakar, and Ziguinchor in the south, where Sonko is mayor, Interior Minister Antoine Felix Abdoulaye Diome said in a statement.

Some social media sites used by demonstrators to incite violence, such as Facebook, WhatsApp and Twitter have been suspended, he said.

“The state of Senegal has taken every measure to guarantee the safety of people and property. We are going to reinforce security everywhere in the country,” Diome said.

Sonko was convicted Thursday of corrupting youth but acquitted on charges of raping a woman who worked at a massage parlor and making death threats against her. The court sentenced Sonko to two years in prison. He didn’t attend his trial in Dakar, and was judged in absentia. His lawyer said a warrant hadn’t been issued yet for the politician’s arrest.

Sonko came in third in Senegal’s 2019 presidential election and is popular with the country’s youth. His supporters maintain his legal troubles are part of a government effort to derail his candidacy in the 2024 presidential election.

Sonko is considered President Macky Sall’s main competition and has urged Sall to state publicly that he won’t seek a third term in office.

Corrupting young people, which includes using one’s position of power to have sex with people under the age of 21, is a criminal offense in Senegal that is punishable by up to five years in prison and a fine of up to more than $6,000.

Under Senegalese law, his conviction would bar Sonko from running in next year’s election, said Bamba Cisse, another defense lawyer.

“The conviction for corruption of youth hinders his eligibility, because he was sentenced in absentia, so we can’t appeal,” Cisse said.

However, the government said that Sonko can ask for a retrial once he is imprisoned. It was unclear when he would be taken into custody.

Shortly after the verdict was announced Thursday, clashes erupted throughout the country with Sonko’s PASTEF party calling for people to take to the streets.

In Dakar, protesters threw rocks, burned vehicles and in some places erected barricades while police fired tear gas. Plumes of black smoke and the sound of tear gas being fired were seen and heard throughout the city. Those who weren’t protesting stayed indoors, leaving much of Dakar a ghost town with boarded-up shops and empty streets as people feared the violence would escalate.