Thousands of people gathering again in Istanbul following the arrest of the city's mayor last week.

Ekrem İmamoğlu, a vocal opponent of the president, was taken into custody on corruption charges and since then more than 1,000 people have been arrested.

Lola Gehrin has our top story tonight from Istanbul.

Istanbul tonight.

One more night of mass protests.

One more night of defying a government ban on demonstrations.

There's been nothing like this here for over a decade.

And the chant tonight, President Ekrem.

Supporters of the city's jailed mayor demanding his release and calling for him to be Turkey's next leader.

For a sixth night the protests are continuing here and the mayor has sent a message to his supporters from inside his jail cell.

He has said we will succeed together and I will continue to watch you here and in squares around the country.

But he also urged young people to avoid violence and confrontation with the security forces.

Many here are eager for change but afraid of being identified.

Burkan, who's 24, knows the risks of speaking out.

I can't say because I know if I say tomorrow morning they will take me from my home.

In Ankara, in Eskişehir, in Izmir, the students which they are just using their rights to protest, to just talk with the government, to just talk with the people, to just supporting their democracy, every day, every morning they are taking from their home, which they are not attacking anyone.

And more protesters were hauled away here tonight.

Over a thousand people have been detained in the past five days, as the mayor of Istanbul was before them.

Ekrem İmamoğlu was the picture of composure in this home video, even as police massed outside his door.

He said he was entrusting himself to his nation and he would not bow to tyranny.

Turkey says its courts are independent.

Taking it all in his stride today, Turkey's ageing leader Recep Tayyip Erdoğan.

He accused the mayor and his party of doing harm to the country and predicted their show would eventually end.

He's hoping the protests will peter out.

And tonight a surprise statement from the opposition.

Tomorrow will be the last rally at City Hall.

It's unclear what their next move may be.

But Turkey is facing a fork in the road.

Can it be a functioning democracy, or is it heading for all-out autocracy?

Orla Giren, BBC News, Istanbul.

President Erdoğan is accusing the opposition in Turkey of disturbing the peace of our citizens with provocations after the week-long protests.

And it's not just rival politicians and demonstrators his security forces are rounding up.

Here's Ros Atkins.

As protests in Turkey spread, there's a clampdown.

On the streets and on the media, too.

And for the last few weeks, it's really been suffocating to be a journalist in Turkey.

At the weekend, the broadcasting watchdog urged news outlets to focus on official information rather than biased and unrealistic news, and warned that licences could be revoked.

Then there are multiple reports that on Monday, at least 10 journalists were detained in Istanbul and Izmir, including two prominent freelance journalists.

And while these protests are new, pressure on Turkey's media isn't.

President Erdoğan's been in power for 22 years.

Under him, 90% of national media is under government control.

Turkey ranks 158th on one Press Freedom Index.

And increasingly central to restricting the media is technology.

In Turkey, Instagram, WhatsApp and YouTube are particularly popular.

All have seen access restricted in recent days.

Then there's Elon Musk's platform X.

He's previously declared free speech is the bedrock of democracy.

In recent days, multiple X accounts have become unavailable in Turkey.

Such is the account of journalist Ark Adyarash, who's a critic of President Erdoğan and lives in exile.

X says there have been multiple court orders to block over 700 accounts of news organisations, journalists, political figures, students and others.

It says it objects to this, though it has complied.

President Erdoğan wants to contain these protests and the media coverage of them.

Both are a test of his power.