Two rockets hit the U.S. Embassy compound in the Afghanistan capital Kabul just before dawn on Christmas Day, an embassy spokesperson said.
No one was injured in the attack and all U.S. citizens were accounted for, Elizabeth Howard, acting spokesperson for the U.S. Embassy in Kabul, told NBC News.
A well-placed source told NBC News that the rocket did not cause any damage to the embassy, but rather impacted the ground within the embassy perimeter.
In a statement read over the telephone, Howard said: "At approximately 6.40 a.m. local time in Kabul (8.40 p.m. ET Tuesday), approximately two rounds of indirect fire impacted the U.S. Embassy compound.
"All Americans are accounted for and no injuries were sustained. The embassy continues to investigate the attack."
Alexander Smith reported from London.
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