Breaking News:Live updates: US says it will strike ‘deeper’ into Iran as war spreads across region– What Just Happened

Iranian strikes on US military bases and facilities across the Arabian Peninsula have targeted and damaged communications, radar and intelligence equipment in an apparent effort to disrupt their connectivity with the outside world, a CNN satellite image analysis of more than 60 bases has found.

Since the US-Israeli bombing campaign started, Iran has struck American military bases and facilities in Iraq, Kuwait, Bahrain, Qatar and the United Arab Emirates.

The strikes have been concentrated on US bases and facilities closest to Iran, damaging at least nine of them, according to CNN analysis. Four of the US bases hit are in Kuwait.

Videos of the strikes suggest that Iran is primarily using relatively inexpensive one-way attack drones.

Six US service members were killed in the strikes, all at a small military facility at Kuwait’s Port of Shuaiba, CNN reported Monday.

In addition, satellite imagery shows damage to a US-made Qatari early-warning radar system at Umm Dahal, according to images analyzed by Sam Lair, a research associate at the James Martin Center for Nonproliferation Studies.

Imagery of the main building housing the AN/FPS-132 phased array radar, which detects long-range targets, showed debris had fallen from one of the radar faces and water runoff from the firefighting effort, according to Lair. The system cost the Qatari government just over $1 billion. It’s unclear how extensive the damage is.

A pair of 40-foot-wide satellite communications dishes were damaged at a Navy facility in Bahrain.

While the base has other communications links, the destruction of those primary systems would significantly narrow its communications capacity and speed, Steffan Watkins, a researcher who studies militaries, told CNN. “It would be an exaggeration to say they went from high speed to dialup, but that’s the idea,” Watkins said.