Colombian senator Miguel Uribe, in the running to join next year’s presidential race, is in a critical condition in hospital after being shot at an event in Bogota, allegedly by a 15-year old boy.

Top U.S. and Chinese officials will sit down in London on Monday for talks aimed at defusing the high-stakes trade dispute between the two superpowers that has widened in recent weeks beyond tit-for-tat tariffs to export controls over goods and components critical to global supply chains.

Colombian police have arrested a teenage boy in connection with Saturday's shooting of far-right presidential candidate Miguel Uribe.