New Delhi, Aug 17 : Police searched the Delhi High Court complex on Thursday after an anonymous caller warned a bomb will explode in the premises. It turned out to be a hoax, police said.The Police Control Room received the call just before 11 a.m.A bomb squad and fire tenders reached the spot. After three hours, the call was declared a hoax. The telephone call was traced to a phone number registered in western Uttar Pradesh, a police officer said.