June 29 (UPI) — The United States and Iran have agreed to stop attacking one another, according to reports, a move that could end days of escalating strikes that threatened their brittle truce.

The two countries have been in negotiations to end their war since signing a Memorandum of Understanding on June 17. But scheduled talks for Tuesday had appeared in jeopardy after Iran allegedly attacked a container ship on Thursday, triggering tit-for-tat strikes in which the U.S. military attacked Iran and Tehran attacked U.S. allies in the region.

On Sunday, after both Bahrain and Kuwait said they had come under Iranian attack, the United States and Iran agreed to halt hostilities, Axios, CNN and ABC News reported, each citing an unnamed senior U.S. official.

Iranian officials have yet to confirm the reported agreement.

The United States and Iran, which have been at war since Feb. 28, signed a MOU toward ending the conflict on June 17, which, among other aspects, stipulated that Iran must reopen and safeguard commercial passage through the Strait of Hormuz.

On Thursday evening, a cargo ship was attacked off the coast of Oman within the strait. The United States responded the next day with accusations of cease-fire violations and strikes on Iran.

Iran on Saturday then said it had issued retaliatory attacks, with U.S. Central Command later stating that it conducted “additional strikes against multiple targets in Iran.”

Bahraini and Kuwaiti officials said each of their militaries had intercepted attacks launched by Tehran, including two ballistic missiles that entered Kuwait’s airspace and one strike that damaged a residential building near an international airport in Bahrain.

Iran’s Foreign Ministry on Sunday also accused the United States of cease-fire violations, saying in a statement carried by state-run Press TV that its recent attacks “show that the U.S. regime does not place the slightest value or credibility on its commitments, and that breaking promises is part of this regime’s nature.”

At least one death has been linked to the strikes.

Qatar’s Ministry of Interior on Sunday said that a person was killed and a second was injured by shrapnel caused by “the military operations taking place in the region.” Neither the United States nor Iran was mentioned in the statement.

It said both victims were on a boat that failed to return as scheduled, prompting a search-and-rescue operation to be launched Saturday evening.

The vessel was found Sunday. Officials confirmed the death of a Qatari citizen as a result of injuries sustained by the shrapnel. The other victim was identified as an “Arab resident” who was in stable condition.

The agreement comes as negotiators from the two countries are scheduled for talks Tuesday in Doha.