KABUL, Afghanistan, Nov. 27 (UPI) -- A bomb exploded near the U.S. Embassy in Kabul, Afghanistan, Thursday, killing at least four people, an Interior Ministry source told RIA Novosti.

The Russian news agency said at least 10 more people were injured in the blast, which occurred during rush hour outside a state-run printing firm about 220 yards from the embassy.

"A terrorist attacked a NATO convoy," the source said.

The official dismissed media reports that the explosion happened just outside the U.S. compound.

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