(WARSAW, Poland) — A large crowd of LGBT rights supporters gathered in Warsaw on Saturday to protest the arrest of a transgender activist who had carried out acts of civil disobedience against rising homophobia in Poland.

“You will not lock all of us up!” people chanted at the demonstration that appeared to have drawn thousands, many of them young adults. Most wore masks to battle coronavirus.

Saturday’s protest comes a day after LGBT rights supporters scuffled with police who arrested the activist, Malgorzata Szutowicz, known best as “Margot.” Police said they detained 48 people, while activists said police used rough tactics against them.

“The police were aggressively pushing the protesters out of the way, knocking people to the ground and holding them down with their boots,” the group said.