Shipping in the Strait of Hormuz is experiencing 'persistently higher levels of electronic interference' and congestion amid growing uncertainty over whether Iran will retaliate over U.S. airstrikes on Tehran's nuclear facilities.

The Joint Maritime Information Center (JMIC) reported on Monday that the strategic situation in the strait remains 'uncertain' following the recent airstrikes, issuing an elevated maritime threat level for passing ships.

The JMIC reports increased electronic interference in the region, particularly affecting Global Navigation Satellite Systems and believed to be originating from the Port of Bandar Abbas and in the Central Arabian Gulf.

Amid uncertainty around whether Iran will attempt to close the strait or widen attacks in the region, some vessels have chosen to sail through the strait during daylight hours, the JMIC reports.

Congestion near Dubai and in the southern Gulf of Oman may be due to ships waiting for orders, an advisory note shared on Monday suggested.