16 June 2013
The BBC's Chris Morris says Turkish police have cordoned off the area around Taksim Square and neighbouring Gezi Park.
Turkey's prime minister has rallied tens of thousands of supporters in Istanbul, telling them it was his duty to clear a city square that has been the focus of anti-government unrest.
Recep Tayyip Erdogan denied he was a dictator, criticised foreign media and vowed to "identify one by one those who have terrorised the streets".
Unrest has continued in Ankara and Istanbul, with police firing tear gas.
Two trade union groups have called a one-day nationwide strike for Monday.
Baki Cinar, a spokesman for one of the groups, Kesk, told AFP news agency: "Our demand is for police violence to end immediately."
The protests in Turkey began on 28 May against a plan to redevelop Istanbul's Gezi Park, but snowballed into nationwide anti-government protests after the perceived high-handed response of the authorities under their three-term prime minister.
Medical officials estimate that 5,000 people have been injured and at least four killed since the protests began.'Unbearable'
The rally in support of Mr Erdogan and his Islamist-rooted ruling party, the Justice and Development Party (AKP), was held in the Kazlicesme district, about 10km (6 miles) from central Istanbul.
The BBC's Chris Morris in Istanbul says this was the perfect day, setting and weather for Mr Erdogan to set out his message of "I am the man in charge".
Mr Erdogan defended Saturday's police action to clear Istanbul's Taksim Square and nearby Gezi Park, saying: "I said we were at an end. That it was unbearable. Yesterday the operation was carried out and it was cleaned up. It was my duty as prime minister."
He criticised the international press and social media for the coverage of the unrest, urging them to be ethical and honest.
"If the international media want a picture of Turkey, the picture is here," he said.
Mr Erdogan denied being an authoritarian leader and said the protests had been manipulated by "terrorists".
He said: "They say 'you are too tough', they say 'dictator'. What kind of a dictator is this who met the Gezi Park occupiers and honest environmentalists. Is there such dictator?
"The attitude across Turkey with the pretext of Taksim's Gezi Park is not sincere. It is nothing more than the minority's attempt to dominate the majority... We could not have allowed this and we will not allow it," he said.
Activists have called on protesters to return to Taksim Square but it is now cordoned off by police.
There have been sporadic clashes in surrounding areas, with police firing tear gas and water cannon.
Istanbul's governor, Huseyin Avni Mutlu, said the public would not be allowed into the square, adding that it would be "unsafe" for protesters to try to gather.
One protester, Mey Elbi, said the demonstrators would not give up.
She told AFP: "We're angry, this is not over. The world has seen that together, we can stand up to Tayyip."
Unrest spread to other parts of Istanbul.
Protesters ripped up paving stones near the Galata bridge and police fired water cannon in the upmarket Nisantasi district.
As night fell, barricades were being erected in a number of city neighbourhoods as youths faced off against police.
Some 1,000 riot police officers earlier arrived at Ataturk Airport from regions as far away as Diyarbakir and Sirnak, local media reported, to try to curb the Istanbul unrest.
Riot police could be seen leaving the city's airport and getting on to coaches bound for the city.
Riot police in Istanbul have been receiving reinforcements from the Turkish provinces. Police in the capital, Ankara, used water cannon on protesters on Sunday. In Istanbul, the prime minister's supporters arrived by boat for a large rally Police formed a cordon around Taksim Square on Sunday. Bulldozers were at work, clearing away the barricades erected by protesters. But sporadic clashes continued in Istanbul throughout the day.
At least 350 police on duty at the airport were also deployed to the city centre in case of possible clashes, Turkey's Dogan news agency reports.
Police also fired tear gas and water cannon to clear demonstrators in Ankara's Kizilay Square on Sunday afternoon.
At least four people were injured.