Stand-up comedian Deniz Göktaş has been placed under arrest by a court in Istanbul after he was held at the city’s main airport over a performance that has attracted 9.4m views on YouTube.

Göktaş is accused of “inciting hatred and hostility” in his stage routine, as well as insulting President Recep Tayyip Erdoğan.

He is the latest performer to be hit by a crackdown on dissent in Turkey that has also targeted campaigners, journalists and other public figures.

In recent weeks, access to the social media accounts of numerous LGBT+ organisations and activists has been blocked, while more than 200 people have been detained ahead of next week’s Nato leaders’ summit in the capital Ankara.

Tens of thousands of security personnel are being deployed for the 7-8 July summit hosted by Erdoğan where US President Donald Trump will meet his European counterparts and Ukraine’s Volodymyr Zelensky.

Last month journalists, lawyers, academics, trade unionists, environmental activists and LGBT campaigners were detained.

Authorities have imposed a ban on demonstrations in Ankara until 10 July and independent Turkish media outlets have complained of being denied accreditation to the summit. Nato said it relied on the host nation, external to ensure access but was in contact with Turkish authorities.

Among those detained late in June were volunteers from one of Turkey’s best-known environmental organisations, the Tema Foundation. Tema said many of those detained were retired people returning from a nature trip, and most were later released.

Deniz Göktaş was arrested as he returned to Istanbul from a holiday, and images of the performer being led away with his hands handcuffed behind his back drew immediate criticism from supporters.