Trump said he called off the strikes after appeals from regional leaders.
President Donald Trump announced "major combat operations" against Iran on Feb. 28, with massive joint U.S.-Israeli strikes targeting military, government and infrastructure sites.
Delegations from the U.S. and Iran entered negotiations in June aimed at a war-ending deal based on a memorandum of understanding signed by both countries.
The U.S. and Iran have nonetheless continued to exchange strikes, with the strategic Strait of Hormuz the primary flashpoint.
United States Central Command said it has begun retaliatory strikes against Iran Wednesday night in the wake of Tuesday night’s surprise attack on U.S. forces.
Earlier on Wednesday, President Donald Trump signaled that the U.S. would carry out major strikes as a result of that attack. CENTCOM is calling the strikes a “powerful response” to the attack.
-ABC News' Luis Martinez
During their White House meeting on Tuesday, President Donald Trump and Israeli Prime Minister Benjamin Netanyahu discussed multiple options for how to prevent Iran from developing a nuclear weapon including military, diplomatic and economic pressure options, according to a senior Israeli official who briefed reporters on the meeting.
Netanyahu did not express to Trump a preference for which option to take when asked if Netanyahu prefers a military option, said the official.
The official warned Iran that if it attacked Israel, it would be making “a big mistake” because Israel would respond “very, very forcefully” and “very quickly."
The official made clear that in the relationship between the two leaders, Trump is the "senior partner" and Netanyahu is the "junior partner."
The official said Israel believes that Iran’s nuclear material has not been moved from the nuclear facilities bombed by the U.S. last week. “We know where it is, it hasn’t moved,” the official said. But later the official seemed to step back from that assertion saying “We think we know where it is" without elaborating.
Ahead of the Trump-Netanyahu meeting there had been indications that the Israeli leader was going to present intelligence about Iran’s activities at Pickaxe Mountain near Natanz, which in the end did not happen.
The official downplayed that Israel had more intelligence than the U.S. noting that both countries readily share their intelligence about Iran.
-ABC News' Luis Martinez
President Donald Trump said that it is "our turn" to strike Iran during an event in the Oval Office on Wednesday, hinting at an impending response to Iran's intercepted strikes on U.S. forces in the Middle East last night.
While the president vowed to strike Iran "very hard" and also "smack them a little bit," he also left the door open to the negotiations he has claimed are going on, following his threats by saying "we'll see if we get there with an agreement at some point."
"In the meantime, we're going to be hitting them very hard because it's our turn to hit them. They know it's coming. They're asking us not to do it, but you know they tried shooting it last night," Trump said.
"So we had five rockets shot going 8,500 miles an hour, and all five rockets were knocked down to the ground, but they nevertheless took a shot. So, it's our turn, and we'll see if we get there with an agreement at some point. But we're going to hit them very hard," Trump added.
When a reporter asked whether Trump would "always respond" to an Iranian strike, Trump said, "pretty much."
Egypt's Ministry of Petroleum and Mineral resources confirmed on Wednesday that "a fire broke out on the regasification vessel and the storage vessel located in Damietta Port."
The ministry said the "incident did not result in any injuries or loss of life," without specifying the cause of the fire.
The ministry's brief statement followed reports on an explosion at the LNG (liquid natural gas) terminal in Egypt, located in the north east of the country.
One security source denied the port had been targeted by a drone, after Reuters, citing maritime security firm Ambrey, reported that an initial assessment indicated a drone had hit a U.S.-owned gas storage tanker at Damietta port.
In a separate statement, the Inchcape Shipping Services, a port services firm, said that an explosion had occurred at Egypt's Damietta Port during cargo discharge operations on Wednesday evening.
The vessels involved have been relocated outside the port, and operations are expected to resume at nighttime at other berths and terminals, ISS said.
-ABC News' Ayat Altawy, Jamie Dorrington, Somayeh Malekian
