The latest tensions around Iran’s war with the United States and partners center on an effort by the U.S. to keep the Strait of Hormuz open for commercial shipping, which comes as a ceasefire appears fragile. Multiple reports say the U.S. tries to “open” the waterway by taking military action against Iranian forces and maritime targets. The Independent adds that the U.S. fires on Iranian forces and sinks six small boats that were reportedly targeting ships.

Despite the risk of escalation, at least some ceasefire elements are reported to be holding on Tuesday. NPR and PBS NewsHour both describe a situation in which fighting could restart, but the ceasefire still appears to be in place. Both outlets also report that the United Arab Emirates says Iran fired missiles and drones at it, indicating ongoing incidents even as a broader pause in hostilities continues.

While different sources highlight different stakes—from shipping access to leverage and global economic concerns—they agree on the core development: U.S. actions tied to access through the Strait of Hormuz are testing whether the current ceasefire can hold.