The President of the Philippines Rodrigo Duterte has expressed regret for using offensive language to describe his US counterpart.
Duterte referred to Barack Obama as a "son of a bitch", which led to the cancellation of an expected bilateral meeting between the two leaders.
President Duterte has pushed back against US human rights concerns following the killing of some 2,400 people since Duterte took office two months ago, as part of his anti-drugs strategy.
US State Department Deputy Spokesman Mark Toner says such comments don't help the relationship....
IN: There has been a tone...
OUT: ...drug trafficking.
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