Commercial shipping activity in the Strait of Hormuz increased over the day on Tuesday despite mounting security risks and a renewed US naval blockade targeting Iranian ports.
The latest data from MarineTraffic showed 21 confirmed crossings through the Strait on July 14, marking an increase from the previous day when verified vessel transits were pegged at 10.
"The profile was mostly commercial and low-risk, although nine sanctioned crossings were also observed, five of total crossings Iranian-flagged," MarineTraffic said.
Ship movements tilted slightly more towards outbound traffic moving from the Gulf of Oman to the Persian Gulf, the ship tracker said. Laden voyages mostly included tankers carrying crude oil, liquefied petroleum gas, and methanol and dry bulk cargoes such as iron ore.
Vessel routing was concentrated on the Iranian route, with only three dark crossings and one International Maritime Organization-route crossing recorded, the data showed. No vessels were recorded using the Omani route.
The IMO's daily Strait of Hormuz incident tracker showed three additional confirmed attacks off the Omani coast this week. These incidents bring the total number of confirmed maritime security incidents in the region to 56 as of Wednesday.
The IMO tracker provides a daily log of verified strikes on ships attempting to transit the Strait of Hormuz since the conflict began, with the earliest incident recorded on March 1.
The risks escalated further after the US military resumed its naval blockade of vessels transiting to and from Iranian ports and coastal areas.
The slight recovery in traffic comes despite deteriorating regional security conditions.
US Central Command resumed the naval blockade of Iranian ports at 4 p.m. ET on Tuesday. On Wednesday, US forces redirected two commercial vessels attempting to access Iranian ports within 17 hours of the operation restarting.
"There are currently more than 20 US Navy warships and hundreds of military aircraft operating across the Middle East," US Centcom said in a post on X.
At 3 p.m. ET on Wednesday, US forces launched a second wave of strikes against Iran. The US Centcom said the attacks were launched under Trump's orders.
The Strait handles about 20% of global oil exports and remains the key export route for crude and liquefied natural gas shipments from Gulf producers.