Turkish authorities have detained 343 people during overnight protests in several cities against the detention of Istanbul Mayor Ekrem Imamoglu, the Interior Ministry said on Saturday.

More than two million supporters of jailed Istanbul Mayor Ekrem Imamoglu took to the city's streets in protest demanding his release after being arrested on corruption charges.

Protests erupted across multiple Turkish cities denouncing the arrest of the mayor of Istanbul even as President Recep Tayyip Erdogan issued a stern warning that demonstrations would not be tolerated.

Thousands of Turks ramped up protests on Thursday despite a ban on street gatherings over what they called the undemocratic detention of Istanbul’s mayor Ekrem Imamoglu, as the opposition sought to pin the blame on President Tayyip Erdogan.

The Turkish president said that the main opposition party would be held accountable for injured police officers and damage to property.

Hundreds of thousands of protesters again congregated in Istanbul Saturday to how their support for the city’s imprisoned mayor and demand his release

Hundreds of thousands of people in Istanbul joined one of the biggest demonstrations in recent Turkish history on Saturday to protest against the government and the controversial imprisonment of deposed mayor Ekrem İmamoğlu.

ISTANBUL — Police used pepper spray, plastic pellets and water cannon against protesters in Turkey’s capital early Thursday, the latest clash in the country’s biggest antigovernment protests in over a decade.

Dozens of demonstrators marched through central Istanbul Thursday protesting the arrest of the city’s mayor. The demonstrations began last week following the arrest of Istanbul Mayor Ekrem Imamoglu, a key rival to President Recep Tayyip Erdogan.