KABUL, Afghanistan — Afghan civilians continued to die by the dozens on Thursday in violent attacks, this time in what Afghan officials said was an American drone strike in eastern Afghanistan, and in a separate Taliban bombing that leveled a hospital in southern Afghanistan.

At least 30 people were killed and 28 wounded in the drone attack in Nangarhar Province, according to local government officials, who blamed United States aircraft. They said some of the victims had gathered to harvest pine nuts at the time of the attack. Separately, at least 22 people were killed and 90 wounded in a suicide truck bombing claimed by the Taliban at a hospital in Zabul Province, officials said.

Since peace talks between the United States and the Taliban collapsed almost two weeks ago, Afghan civilians have suffered a relentless wave of violence. The Taliban have vowed to disrupt presidential elections scheduled for Sept. 28 and to attack government facilities.

At the same time, President Trump has said American forces supporting Afghan troops have ramped up attacks against the militants. He wrote in a tweet on Sept. 9: “We have been hitting our ENEMY harder than at any time in the last ten years!”