A senior US military official has told NBC News that the Nato soldier killed by an Afghan Local Police officer in the east of the country was an American.
Earlier two British troops were shot dead by an Afghan soldier.
16 Nato servicemen have been killed by Afghan Security forces so far this year.
More top news
A brewery in the US stopped beer production and started canning emergency drinking water for flood victims in Texas and Oklahoma.
While Fifa battles allegations of corruption, fans are preparing for the oldest cup competition in the world - the FA Cup - tomorrow.
A fine start to the weekend though cloud will start spreading in from the west throughout the afternoon ahead of a wet night.