Philip Hammond: 'No change in Afghanistan policy'

Nato says it is restricting operations with Afghan troops following a string of deadly attacks on its personnel by rogue Afghan security forces.

Only large operations will now be conducted jointly, with joint patrols evaluated on a case-by-case basis.

Britain's Defence Secretary Phillip Hammond said the changes did not amount to a change in strategy, but was to "ensure that any partnering with Afghan troops at lower than battalion level is properly approved with proper risk assessments in place".