English rock band Muse, meanwhile, scrap Istanbul concert in solidarity with Imamoglu protesters.
Jailed rival to president has urged millions to join the rejection of targeted firms "with discipline and self-devotion".
Lack of backing from Western countries added burden for those aiming to keep up the momentum of protest.
Days earlier, French leader took aim at Turkish government for carrying out "systematic attacks" on freedoms. And referred to some mysterious "democratic path".
Kaj Joakim Medin also faces trial for membership in "terrorist" organisation claimed by prosecutors.
"With every move he makes against me, Erdogan shows he is someone who runs away from elections and is afraid of his opponent," jailed politician tells crowd via read-out letter.
Turkey’s opposition seriously lacks imagination, as it showed today by moving the Free Imamoglu, Give Us Democracy street campaign to the periphery, much to the regime’s delight.
Notes: “In my 50 years living in Istanbul, I have not seen as many so-called security measures on the streets as I have over the past few days.”
“Democracy’s fate depends on the courage of those who refuse to remain silent when institutions crumble,” he writes from his prison cell.
European leaders are alarmed at the increasingly warm relations between US President Trump and Putin, but economists are encouraged as even a “quick and dirty” ceasefire deal to the Ukraine conflict will buoy flagging CEE economies.
Day nine of demonstrations also brings detention of Ekrem Imamoglu’s lawyer.
Interim President Ilie Bolojan says Romania has a strategic interest in continuing to support Ukraine.
Reporter Mark Lowen has talked about press freedom and democracy. His comments in the context of the realities of the Erdogan regime are laughable.
Protest also declared as start of opposition campaign to make jailed politician Turkey's next president.
Government has a long track record of using deposit insurance fund TMSF as a tool for wealth transfer.
Regime has struggled to stabilise the financial markets but, as things stand, the situation does not threaten its survival.
Main opposition party continues to play the fool, acting like some laws are still in effect in the country.
A spate of protests across several emerging markets is reigniting concerns over economic stability and long-term financial health. From Turkey to Indonesia, social unrest has flared up that threaten countries with weak fundamentals.
Officials step up warnings as street protests take place for sixth night. Berlin tells Ankara an EU aspirant must adhere to rule of law.
Regulator has issued threats to channels showing live broadcasts of huge demonstrations. Photographers have been targeted for detention, says NGO.