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A woman pays her respects at the Erawan shrine, the site of Monday's deadly blast, in central Bangkok, Thailand, August 19, 2015. The government said Monday evening's attack at the popular Erawan shrine in the heart of Bangkok was aimed at wrecking the economy, which depends heavily on tourism. No one has claimed responsibility for the blast, which killed 22 - nearly half of them foreigners - and wounded more than 120. REUTERS/Athit Perawongmetha

According to CCTV footage, the explosions that rocked the Thai capital of Bangkok at Erawan shrine on Monday and resulted in the death of 22 people and injured 140 might have been caused by a young man with a backpack wearing yellow t-shirt. Thai police said they are certain that the man captured in the footage is the bomber.

The footage, which was broadcasted on Thai Media, showed a young man in shorts and yellow t-shirt sitting on a bench and removing a large black backpack from his shoulders. He left the bag at a bench and walked away before checking his cellphone. The time recorded was just minutes before the explosion. “The yellow-shirt guy is not just the suspect. He is the bomber,” Lt Gen Prawut Thavornsiri, a police spokesman, told the Associated Press. “We are very sure. He carried the backpack in at 6:52 p.m. and put [it] under a bench.”

Another explosive was dropped into the Chao Phraya river of Bangkok from Taksin Bridge on Tuesday which went off sending large splashes of water near a busy pier with commuters waiting to hail taxi boat. CCTV footage showed people on the walkway getting doused in water after what seemed like a pipe bomb was thrown into the water. The second blast however has not caused any injury.

The two back to back bombings have sent a wave of unease thought out the city, with tourists avoiding the busy malls and other crowded places and commuters choosing to stay back at home. Police Lt. Gen. Prawut Thavornsiri said that the second bomb, which was thrown in the river, was similar in construction as the first bomb that killed mostly tourists near the Hindu temple on Monday.

National Police Chief Somyot Poompanmoung said the suspect had black hair and wore wristbands in both hands. He also said that the man could either be Thai or a foreigner. “We need to look at the before-and-after CCTV footage to see if there is a link,” Somyot told reporters on Tuesday.

Meanwhile, Australian model and actor Sunny Burns has been confused with the bomber after the CCTV footage was broadcasted in the media. Burns told Channel Seven that his immigration papers have been posted on social media, leaving him with no other option but to go to the Thai police and allow them to question him.

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