Protesters gesture as mobile brigade (Brimob) police officers stand guard during a riot near the Election Supervisory Agency (Bawaslu) headquarters in Jakarta, Indonesia, May 22, 2019. Indonesian riot police fired tear gas at protesters in central Jakarta on Wednesday, as fresh clashes broke out on the streets of the capital following the announcement of official election results, a Reuters witness said. REUTERS/Arimacs Wilander

Police fire teargas at protesters in Jakarta, Indonesia May 22, 2019. Protesters hurled fireworks at officers and set blazes on one of the main streets near the election supervisory agency as they tried to breach barbed wire separating them from police. There were also clashes in another area of central Jakarta. Antara Foto/M Risyal Hidayat

Police face off against protesters in Jakarta, Indonesia May 22, 2019. Jakarta has seen sporadic rioting in various parts of the city since Tuesday, when the General Election Commission (KPU) confirmed that President Joko Widodo had beaten his challenger, former general Prabowo Subianto, in the April 17 poll. Antara Foto/Nova Wahyudi

Protesters clash with police in Jakarta, Indonesia May 22, 2019. Indonesian riot police fired tear gas at protesters in central Jakarta on Wednesday, as fresh clashes broke out on the streets of the capital following the announcement of official election results, a Reuters witness said. Antara Foto/Nova Wahyudi

Protesters throw rocks at police in Jakarta, Indonesia May 22, 2019. Indonesian riot police fired tear gas at protesters in central Jakarta on Wednesday, as fresh clashes broke out on the streets of the capital following the announcement of official election results, a Reuters witness said. Antara Foto/Nova Wahyudi

Mobile brigade (Brimob) police officers guard during a riot near the Election Supervisory Agency (Bawaslu) headquarters in Jakarta, Indonesia, May 22, 2019. Indonesian riot police fired tear gas at protesters in central Jakarta on Wednesday, as fresh clashes broke out on the streets of the capital following the announcement of official election results, a Reuters witness said. REUTERS/Arimacs Wilander