Kathmandu, August 30( Nepal Niti)- Pro-democracy activist of Hong Kong Joshua Wong has been arrested in Hong Kong, according to a statement by the political party he co-founded. The Demoisto party said he had been suddenly pushed into a private car on the street while walking to a train station at around 07: 30 local time on Thursday. The 23-year-old was taken to police HQ in Wan Chai, his party said. Another prominent activist, Agnes Chow, was also arrested. Both activists were detained on suspicion of inciting others to participate in an unauthorized assembly and for knowingly taking part in an unauthorized assembly, police told the BBC News Chinese. Mr. Wong faces one further charge of organizing an unauthorized assembly. Their arrests are related to a protest on 21 June which saw protesters blockade police headquarters for 15 hours.