Commercial ships remain cautious about transiting the strait as tensions escalate between the U.S. and Iran again.

The day after Iran declared the vital waterway open, it reversed course, injecting new peril into navigation there.

Analysts warn shipping risks through the conduit are at their highest level yet after this weekend's vessel strike and U.S. seizure of an Iranian-linked ship.

Ship-tracking data shows 279 ships have passed through the strait and 22 have been attacked since the war on Iran began.

Iran’s Revolutionary Guards said they were closing the strait until the U.S. blockade is lifted. Two ships reported being hit as they tried to pass through the strait.

Crude oil prices surged Sunday, as the U.S. and Iran teetered on the brink of a renewed war after attacks on commercial ships in the Strait of Hormuz.

The vessels were forced to dock in ports throughout the Persian Gulf since the conflict broke out on Feb. 28

MSC Cruises, TUI Cruises and Celestyal Cruises all reported that their ships had safely transited the Strait of Hormuz.

Two Navy guided-missile destroyers entered the Strait of Hormuz on Saturday, the first American warships to transit the strait since the U.S.-Israel offensive in Iran began on Feb. 28. USS Frank E. Peterson (DDG-121) and USS Michael Murphy (DDG-112) are now in the Persian Gulf after transiting the strait as part of the U.

Iran says it has reverted to "strict" conditions in the Strait of Hormuz, just one day after announcing the reopening of the waterway.