Mong Kok student protest leaders Lester Shum and Joshua Wong arrested . Hong Kong police : 513 people had been arrested during confrontation in Hong Kong . Prior to his arrest , Shum told CNN he urged protesters to remain on the streets until the `` last second . '' Clashes erupted after bailiffs initiated a court-ordered clearance of a street . Authorities cleared a nearby street of protesters ' barricades and tents Wednesday .
Mong Kok student protest leaders Lester Shum and Joshua Wong arrested . Hong Kong police : 513 people had been arrested during confrontation in Hong Kong . Clashes erupted after bailiffs initiated a court-ordered clearance of a street . Authorities cleared a nearby street of protesters ' barricades and tents Wednesday .