Members of the US Congress have called for a probe into conditions amid reports of sailors attempting to jump ship.

United States President Donald Trump has dismissed concerns about conditions on board the USS Abraham Lincoln during its lengthy deployment as part of the US-Israel war with Iran.

Speaking to reporters on Friday, Trump rejected the assertion that the families of those on board the aircraft carrier are worried about their loved ones. “No, they’re not,” Trump said.

When asked if the aircraft carrier had been deployed too long, Trump replied: “No, no, no, not nearly enough.”

His remarks follow a series of reports this week, documenting supply shortages and mental health strain on the USS Abraham Lincoln. That includes accounts of individuals attempting to jump from the ship.

The aircraft carrier left in November from a base in San Diego, California, and it has since been involved in January’s military operation against Venezuela and, more recently, the war against Iran.

Its deployment was expected to end in May, but that timeframe has been extended. It has spent more than 250 days at sea without a port stop, setting a record for the US Navy. More than 5,000 sailors and Marines are housed on board.

Several US lawmakers have since called for an inquiry into conditions on board the ship. One Democratic senator, Ruben Gallego, has also called on the Navy to allow a bipartisan delegation to visit the ship to assess the state of affairs.

Still, the Trump administration has repeatedly denied worsening conditions on the USS Abraham Lincoln.

On Friday, a US official told Al Jazeera the Navy had “not observed an increase in suicidal ideations or attempts aboard the ship”.

The official added that there were five chaplains, one psychologist, one social worker, three “behavioral health technicians”, and one “embedded integrated prevention coordination (EIPC) counselor” on board the vessel. There is also an emotional support dog on board.

‘What military objective?’

While Trump downplayed the length of the deployment, he did confirm reports that the aircraft carrier will be swapped out in the near future.

“That ship is moving right now or very shortly, and it’s being replaced with another very similar ship,” Trump said on Friday.

In a letter to Secretary of Defense Pete Hegseth earlier this week, Senator Richard Blumenthal, a Democrat, asked for information on conditions on the boat, including what metrics the Navy was using to measure the mental health of the crew.

“What military objective is the continued deployment of the Lincoln intended to achieve in Iran, and how does the Department assess whether the carrier’s continued presence is necessary to accomplish that objective?” he asked.

The focus on conditions aboard the USS Abraham Lincoln come as diplomatic efforts to end the US-Israeli war in Iran show no signs of breakthrough. The war began with a US and Israel-led offensive on February 28.

In June, the US and Iran signed a memorandum of understanding (MoU) that called for an immediate pause to the fighting.

But last month, the memorandum collapsed amid a dispute over the Strait of Hormuz, a key waterway for trade.

The subsequent escalation saw the US re-impose its naval blockade on Iranian ports and Iran constrict traffic through the strait once more.

Iran has since focused its diplomatic efforts on reaching an agreement with Oman over travel routes in the waterway, which is a key artery for oil, natural gas, fertiliser and other goods.