ISLAMABAD - A Pakistani Islamist group whose supporters clashed with the police over the weekend is to call off its weeks-long protest after the government agreed to its demands and the law minister resigned, its spokesman said on Monday."Our main demand has been accepted," Ejaz Ashrafi, spokesman of the Tahreek-e-Labaik group, told Reuters. "Government will announce the law minister’s resignation and we will end our sit-in today."Law minister Zahid Hamid has resigned, state-run news channel PTV said on Monday. The Islamist group had blocked the entrance to Islamabad, the capital, for several days before police on Saturday failed in a bid to disperse the protesters, setting off demonstrations in other major cities.