Three children were found dead in the surf off Brooklyn’s famous Coney Island boardwalk early Monday, and police believe their mother may have drowned them. The bodies of the 7-year-old boy, 4-year-old girl and 3-month-old girl were found after a nearly three-hour search that began at 1:40 a.m. when a relative called the police he became concerned that the woman intended. to harm her children. The mother was found 90 minutes later, barefoot and soaking wet, 2 miles (3 kilometers) down the boardwalk from the section of Coney Island where she lived. Detectives were trying to question the woman at the local police station. “So far, he hasn’t said anything,” NYPD Chief Kenneth Corey said. The search for the children intensified after the mother was found alone. Police dispatched a helicopter and units of marines. The children were found at the water’s edge shortly after 4:30 am. on a quiet stretch of beach about 13 blocks from the stadium where the Brooklyn Cyclones Minor League Baseball team plays its games. Attempts to revive the children at a nearby hospital were unsuccessful, Corey said. Police did not immediately identify the children or the 30-year-old mother. No decision has been made on what criminal charges he may face. The children’s bodies were found just three blocks from the woman’s apartment building, where police had originally gone when the investigation began. Corey said officers had searched the beach and boardwalk, searched neighborhood streets and checked the local hospital for the children’s hunt before the mother was found on the boardwalk. As they continued to search the area, officers found a shoe in the water and bagged it as evidence. A security supervisor for the building where the mother and children lived said the family had moved in less than a year ago. Corey said the mother had not previously reported abuse or neglect to authorities.