Joshua Wong, the most prominent of Hong Kong's student protest leaders, alleged he was assaulted by police who used excessive force -- including repeatedly grabbing his genitals -- during his arrest at pro-democracy demonstrations. 

Wong, 18, made the claims after appearing in court Thursday charged with obstructing officers clearing a protest site in the city's Mong Kok district the day earlier. 

Wong's lawyer, Michael Vidler, told CNN his client had been "clearly targeted by police." 

"Excessive force was used and he was assaulted while he was on the ground," said Vidler. 

"Police kicked and punched him and effectively sexually assaulted him -- his private parts were grabbed repeatedly and painfully. We're considering our next steps and will decide over the next few days how to proceed." 

READ MORE: Who is Joshua Wong? 

Glasses gone 

Footage of Wong's arrest shows the teenager being suddenly rushed by a man wearing a police vest, then forcefully dragged away and disappearing beneath a huddle of police officers. 

Wong, who had earlier been filmed in heated but non-violent exchanges with people clearing the road of barricades, later tweeted he had lost his signature glasses during the arrest. 

In response to Wong's claims, police issued a statement saying that if anyone believed they had been treated unfairly by police, they could take action through the Complaints Against Police Office. 

Vidler said Hong Kong police were displaying "increasingly brutal" behavior as the protests entered their third month. 

"People are learning the other side of the Hong Kong police and it's not an attractive side," he said. 
What was his name?
Michael Vidler