Later they said, it was a planned terrorist attack.

之后他们称这是一次有计划的恐怖攻击。

youdao

This strategy will work to keep the United States safe from another major terrorist attack planned and executed on Afghan territory.

CNN: Obama's strategic retreat in Afghanistan

On Thursday, the U.S. State Department warned of an unconfirmed report of a possible terrorist attack planned in a Western neighborhood of Jeddah, Saudi Arabia.

CNN: Saudis: Four detainees have links to al Qaeda, attacks