A Russian national was gunned down in the Colombian capital of Bogota, where he arrived on a business trip, the Colombia Reports newspaper said, citing police. The man, aged 36, was found with two gunshot wounds to the chest under a city bridge. He was taken to hospital, but succumbed to his injuries shortly after. Police say robbery could be a motive for the attack. A taxi driver is seen as a possible suspect and is currently being searched for.