Thai police said Thursday two men identified as suspects in the bombing at a Bangkok shrine have been cleared of any involvement. The two men, a Chinese tourist and his Thai guide, were captured on security cameras wearing red and white t-shirts and standing near the main suspect just before the explosion at the Erawan Shrine on Monday. Police spokesman Prawut Thavornsiri said investigators were satisfied the two were not involved in the attack, which left 20 people dead. A manhunt for the primary suspect, who was seen on security footage wearing a yellow t-shirt and leaving a backpack near the shrine just before the blast, is still underway. Authorities believe the suspect is still in Thailand and have questioned a tuk-tuk driver who drove the suspect to the shrine.