By Jonathan Landay, Phil Stewart and Anthony Deutsch WASHINGTON (Reuters) - Iran did not include mobile launchers with the close-range ballistic missiles that Washington last week accused Tehran of delivering to Russia for use against Ukraine,

Iran has supplied Russia with close-range ballistic missiles but withheld mobile launchers, according to U.S. and European officials. The delivery, which Washington accuses Tehran of sending for use against Ukraine, raises questions about when the missiles will become operational.

Iran sent ballistic missiles to Russia without the mobile launchers needed to fire them — but it doesn’t look like Tehran will be sending the crucial equipment anytime soon.

The Shahed-136B is reportedly an upgraded version of the Shahed-136, a type of drone used by Russia in near-daily attacks against Ukraine. The newer drone has an operational range of 4,000 kilometers (2,

U.S. Secretary of State Antony Blinken says Russia is likely to start hammering Ukraine with Iranian-provided ballistic missiles "within weeks."

Iran has likely not supplied mobile launchers for short-range ballistic missiles to Russia. The discussion concerns Fath-360 missiles, according to Reuters. An American official, speaking anonymously to the agency,

Iran did not supply Russia with the mobile launchers required to deploy the short-range Fath-360 ballistic missiles that Tehran is said to have provided to Moscow for use against Ukraine. Source: Reuters,