BRASILIA, Dhu-AlQa'dah 06, 1437, August 09, 2016, SPA -- Police are investigating the possibility that a nine-year-old boy who drowned in a river in southern Brazil was playing Pokemon Go at the time and said on Tuesday they would sue the maker of the popular mobile game if that were the case, according to Reuters. Two nine-year-old boys were playing on rowing boats on Monday and one fell into the river and drowned, a police statement said. Media reports said the boys were hunting Pokemon characters, a version of events that was included in an initial military police report. Parents of the boys, however, denied they were playing Pokemon Go and said the Alcatel One Touch phone belonging to the surviving child did not have the app installed on it. But police have not ruled out that the game could have been linked to the drowning. Pokemon Go uses augmented reality and Google mapping to make animated characters appear in the real world. Players see creatures overlaid on the nearby landscape that they see through a mobile phone camera. The game has prompted safety warnings after players glued to their phones stumbled, were robbed or wandered into dangerous places. The app has been downloaded more than 100 million times, according to analytics company App Annie. --SPA 22:52 LOCAL TIME 19:52 GMT www.spa.gov.sa/w