Washington (CNN) The United States conducted an airstrike Wednesday against Taliban fighters in Afghanistan who are accused of attacking an Afghan National Defense and Security Forces checkpoint, according to the US military.

The strike comes hours after a telephone call between President Donald Trump and Taliban chief negotiator Mullah Abdul Ghani Baradar on Tuesday amid reports that the Taliban had resumed violence in Afghanistan days after the US and the Taliban signed a historic agreement in Qatar on Saturday.

The strike was from a drone, according to a US defense official.

"The US conducted an airstrike Wednesday against Taliban fighters in Nahr-e Saraj, Helmand, who were actively attacking an #ANDSF checkpoint. This was a defensive strike to disrupt the attack. This was our 1st strike against the Taliban in 11 days," US Forces in Afghanistan Spokesman Col. Sonny Leggett said in a series of tweets.

"On March 3rd alone, the Taliban conducted 43 attacks on #ANDSF checkpoints in #Helmand. The Taliban claim to be fighting to free Afg. from int'l forces, the Feb 29 agreement provides a conditions-based path to withdrawal," he added, referring to the agreement signed last Saturday.

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