KABUL (AFP)--The US ambassador to Afghanistan, Ryan Crocker, is to leave his post this summer, the embassy in Kabul confirmed Tuesday.

"Amb Crocker has confirmed with regret that he will be leaving Kabul this summer," the embassy said on its Twitter feed, a day after the conclusion of a NATO summit in Chicago in which leaders charted a path out of the Afghan war.

The veteran diplomat, who was appointed to Kabul 10 months ago, previously served as the US envoy to Iraq, Pakistan and Syria.