Germany has temporarily closed its embassy in the Afghanistani capital Kabul due to fears of a possible attack, the Associated Press is reporting.
Earlier an international compound building housing military contractors in the city came under attack from gunfire.
Local police officials said there were casualties at the scene of the incident.
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The Duke and Duchess of Cambridge met young people who have battled mental health issues on Saturday.
Former Chancellor Lord Geoffrey Howe was Margaret Thatcher's longest-serving Cabinet minister, also taking on the role of Foreign Secretary.
Lord Geoffrey Howe is known by many for his resignation speech which was seen as the catalyst which destroyed Margaret Thatcher.