Foreign troops to stay in Afghanistan: sources

International troops plan to stay in Afghanistan beyond the May deadline agreed with the Taliban.

That's according to four senior NATO officials, who said that there would be no full withdrawal of the 10,000 troops stationed there.

The move is likely to increase tension with the Taliban, who've said there will be consequences if the deal is violated.

One NATO official told Reuters the circumstances had not been met for foreign troops to leave.

Kabul and some foreign governments say the Taliban has failed to meet its promises, pointing to violence that has remained high, while also accusing them of failing to cut ties with al Qaeda.

The NATO source, who wished to remain unnamed due to the sensitivity of the issue, added that under a new White House there will be tweaks to the Afghanistan policy.

Last year, the then-U.S. President Donald Trump signed an agreement with the Taliban, which called for the withdrawal of all foreign troops in return for the insurgents fulfilling security guarantees.

Trump hailed the accord as the end of two decades of war, but it did not include the Afghan government.

Talks between Kabul and the Taliban have since stalled.

What happens after April is expected to be top of the agenda at a key NATO summit this month.

NATO spokeswoman Oana Lungescu said, "No NATO ally wants to stay in Afghanistan longer than necessary, but we have been clear our presence remains conditions-based."

The administration of Joe Biden has launched a review of the Afghanistan peace agreement.

A spokesman for the Pentagon said the Taliban had not met their commitments but Washington was yet to decide on future troop levels, while, Afghanistan's presidential palace did not respond to a request for comment.