CNN has reported that roughly half of Iran’s missile launchers are still intact and thousands of one-way attack drones remain in its arsenal despite the daily pounding by US and Israeli strikes, according to recent US intelligence assessments, citing three sources familiar with the intel.

Thousands of Iranian drones still exist — roughly 50 per cent of the country’s drone capabilities — two of the sources said the intelligence indicated.

The US intelligence assessment total may include launchers that are currently inaccessible, such as those buried underground by strikes but not destroyed, according to CNN.

The intelligence, compiled in recent days, also showed a large percentage of Iran’s coastal defense cruise missiles were intact, consistent with the US not focusing its air campaign on coastal military assets, though they have been hitting ships.