A massive manhunt was underway in northern Tel Aviv on Monday after authorities received a call from an individual who claimed he had been sent from Hebron to carry out a terrorist attack. According to the Israel Police, the caller spoke with an Arabic accent and said he had had a change of heart "and wants to go home." The police traced the call to the Tel Aviv port area, but could not determine the identity of the caller. Hundreds of law enforcement officials set up roadblocks in and around the area, including on Route 2, which runs along Israel's coast, and the Ayalon Highway, which traverses the city from north to south. According to a statement released by the Israel Police, "in light of the ongoing situation, the head of the Israel Police Tel Aviv District has decided to increase police activity across the district. He calls on the people to exercise more vigilance and report any suspicious activity." As of late Monday night, the caller's whereabouts were still unknown.