The U.S. Navy has accounted for all its drones , a U.S. Navy official says . United States is only in internationally recognized air space in the Gulf , says source . The drone was seized as it flew over the Persian Gulf , Iranian state media says . Read more : Key U.S. official defends use of drones . Iran 's Revolutionary Guard says the drone was collecting intelligence .
The U.S. Navy has accounted for all its drones , a U.S. Navy official says . United States is only in internationally recognized air space in the Gulf , says source . The drone was seized as it flew over the Persian Gulf , Iranian state media says . Iran 's Revolutionary Guard says the drone was collecting intelligence .