British soldiers could return to Baghdad to support Iraqi security forces in their fight against Islamic State.
A number of officers are expected to be sent to join the US-led training mission to the Iraqi capital.
"We are exploring what more can be done on training as part of a future package of support aimed at bolstering the ability [of the Iraqi military] to tackle [Islamic State]," a senior defence source told The Times.
The Ministry of Defence is due to make an announcement later.
David Cameron has refused to send ground troops to fight the Islamist group, which controls large swathes of Iraq and Syria, but a "small specialist" team was sent to advise Kurdish Peshmerga in the northern city of Erbil last month.
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