WASHINGTON, July 13 (Reuters) - President Donald Trump told reporters on Monday that the United States was attacking Iran's capabilities related to the Strait of Hormuz, amid renewed military action between the two countries.

The U.S. military said on Monday it was launching fresh strikes against Iran but Trump told reporters at the Oval Office on Monday that he had not decided that a negotiated settlement could not be reached with Tehran.

Trump also said that it could be that there are Iranian drones in Cuba.

JERUSALEM, July 13 (Reuters) - A United Nations official has said Palestinian militant group Hamas was disrupting aid distribution in the Gaza Strip, placing further hardship on its civilians already grappling with the humanitarian crisis in the war-shattered enclave.

In a statement late on Sunday, the U.N.'s humanitarian coordinator for the Palestinian territories said humanitarian workers had to halt activity on Saturday after armed men entered a food distribution point in northern Gaza and assaulted two truck drivers in a World Food Program warehouse.

By Phil Stewart and Idrees Ali

WASHINGTON, July 13 (Reuters) - Democratic senators led by Kirsten Gillibrand called on Monday for President Donald Trump's administration to disclose within the next week the findings from a U.S. military investigation into a Feb. 28 strike at a girls' school in Iran.

Reuters first reported on March 5 that an initial, internal U.S. military investigation showed U.S. forces were likely responsible for the fatal strike in Minab on the opening day of the war with Iran.

LONDON, July 13 (Reuters) - The U.S. military will begin enforcing a maritime blockade on Iran on Tuesday, the U.S. Navy-led Joint Maritime Information Center (JMIC) said on Monday.

The blockade, covering all of Iran's ports, oil terminals and coastal areas, will be enforced for all vessel traffic - regardless of flag - from 2000 GMT on July 14, the center said in an advisory.

By Andrew Gray and Bart H. Meijer

BRUSSELS, July 13 (Reuters) - A ban on trade with Israeli settlements in the occupied West Bank received the strongest backing among European Union foreign ministers on Monday, EU foreign policy chief Kaja Kallas said, although the bloc remained divided over possible curbs on such commerce.

European governments have increased pressure for EU action in recent months, citing violence by Israeli settlers against Palestinians and frustration with Prime Minister ​Benjamin Netanyahu’s government, which has expanded settlements.

LONDON, July 13 (Reuters) - The U.N.'s shipping agency said on Monday that it opposes fees on ships passing through maritime waterways but would await more details after U.S. President Donald Trump said he would reinstate a naval blockade on Iran and charge 20% on all cargo shipped through the Strait of Hormuz.

Trump said in a Truth Social post the process would begin immediately, but did not elaborate.

"We are aware of the post and awaiting more details," a spokesperson with the U.N.'s International Maritime Organization said.

By Nate Raymond

BOSTON, July 13 (Reuters) - An Iranian-born engineer was convicted on Monday of U.S. charges that he conspired to illegally export technology with potential application in military drones to a company in Iran whose customers included the country's Islamic Revolutionary Guard Corps.

July 13 (Reuters) - Renewed U.S.-Iranian hostilities are eroding an interim agreement signed in June, reflecting disagreements over the Strait of Hormuz and other issues and underlining difficulties facing efforts to secure lasting peace.

The 14-point Islamabad Memorandum of Understanding(MoU) declared an end to the war and the Strait of Hormuz open for commercial vessels. But its wording was vague on key points, analysts say, while leaving tough issues - notably the fate of Iran's nuclear programme -to a second phase of negotiations.