Anti-vaccine protesters began to crowd outside the Verkhovna Rada that had no scheduled sessions for  Wednesday.

The crowd grew to some 1.5 thousand people while marching to the SBU headquarters to call for release of the anti-vax campaign activist Ostap Stakhiv.

The Lviv native known as a vocal opponent of vaccination efforts caught media attention after several protests fuelling anti-vax sentiment.

He was recently detained on charges filed by the state security agency that claimed he tried to ‘overthrow the constitutional order in Ukraine’.