DUBAI, United Arab Emirates (AP) — Iran appears to be preparing another satellite launch after twice failing this year to put one in orbit, despite U.S. accusations that the Islamic Republic's program helps it develop ballistic missiles.

Satellite images of the Imam Khomeini Space Center in Iran's Semnan province this month show increased activity at the site, as heightened tensions persist between Washington and Tehran over its collapsing nuclear deal with world powers.

While Iran routinely only announces such launches after the fact, that activity coupled with an official saying a satellite would soon be handed over to the country's Defense Ministry suggests the attempt will be coming soon.