U.S. officials have again warned Americans to leave Kabul airport after Biden said a new attack was "more likely."

U.S. officials have again warned Americans to leave Kabul airport after Biden said a new attack was "more likely."

U.S. officials have repeatedly warned Americans to leave the Kabul airport area immediately due to security threats, with President Biden saying another terrorist attack there is "more likely" in the next few days.

The U.S. embassy in Kabul warned Americans of a "specific, credible threat" early Sunday morning in Afghanistan. Foreign Ministry officials have issued several similar warnings in recent days.

On Saturday, President Biden reiterated that the U.S. retaliatory strike on Friday was not the last for Thursday's suicide attack.

The warnings are another sign of a confusing and dangerous situation as the US tries to pull the last remaining Americans and Afghanistan out of Taliban-controlled Afghanistan before Tuesday's deadline.

A suicide attack by Islamic State militants that killed scores of people outside Kabul airport this week has further hurt the country and hampered evacuation efforts.

In a statement, Mr Biden said another attack was "more likely" in the next 24 to 36 hours. He added that he had ordered the U.S. military to "protect our men and women on the ground."

He also said Friday's retaliatory killing of two ISIS militants was "not the last."

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