Rex Tillerson warns against 'proxy conflicts' in Lebanon

US Secretary of State Rex Tillerson cautioned countries in the Middle East against using Lebanon as "a venue for proxy conflicts".

Mr Tillerson issued the message, apparently aimed at the Saudis but which could easily include Iran, after leader of the militant group Hezbollah said Riyadh had "declared war" on Lebanon by holding its Prime Minister, Saad Hariri, against his will.