ISTANBUL ��" Riot police with water cannons and tear gas are hitting protesters who remain defiant after authorities evicted activists from an Istanbul park. Sunday's clampdown indicated authorities were taking a hardline stance against attempts to rekindle the protests. In Istanbul, police battled protesters in side streets off Gezi Park and beyond. In Ankara, the capital, police dispersed hundreds who tried to hold a memorial service for an activist who died of injuries sustained in a nearby police crackdown nearby on June 1. A police sweep Saturday ended a more than two-week sit-in by activists in Gezi Park. Critics are angry over how Prime Minister Recep Tayyip Erdogan's government has handled the crisis.