At least 358 protesters – most younger than 25 years old – could be arrested for their roles in violent clashes with security officers after Sunday’s protest march, police officials said on Monday.The potential arrests would be in addition to 19 protesters who were arrested Sunday and early Monday over the violence that erupted at the end of a protest march against a government-proposed extradition bill.Police officials, addressing the media on the overnight violence, said dozens of weapons…