Eleven U.S. personnel were injured in a terrorist attack in Afghanistan's capital that killed dozens and injured hundreds more, according to the State Department.

"Eleven U.S. citizen contract personnel were injured in the attack in Kabul," a State Department official told the Washington Examiner. "None of their injuries appear to be life-threatening."

A suicide bomber rocked Kabul's diplomatic neighborhood Wednesday by detonating a truckload of explosives, creating a blast that shattered windows about a mile away from the site. At least 90 people were killed and 400 wounded, according to reports.

"The blast was so huge that it dug a big crater as deep as four meters," Gen. Hassan Shah Frogh, the city's police chief, told reporters.

The Taliban denied responsibility for the attack, but remains under suspicion.

"The blast came a week before the Afghan government of President Ashraf Ghani was to host a gathering of representatives of more than 20 countries to discuss political solutions to the long-running conflict with the Taliban," as the Wall Street Journal noted. "It also came amid debate in the administration of President Donald Trump over the direction of U.S. policy in Afghanistan: The Pentagon has recommended sending an additional 3,000 U.S. troops to the country to combat the Taliban and other militant groups and to assist the Afghan military."