United Arab Emirates air defenses were engaged against Iranian missiles and drones, the UAE Defense Ministry said on Tuesday in an X/Twitter post.
The post noted that the incident involved several areas of the country and involved both ballistic and cruise missiles.
No group has yet claimed responsibility for the attack, with the UAE Foreign Ministry saying the country reserves its "full and legitimate right" to respond.
The Iranian Foreign Ministry denied launching missiles and drones at the UAE, claiming that they were conducting “defense measures” aimed at US assets in a statement released later on Tuesday.
The Foreign Ministry accused the UAE of “collaboration with hostile parties” by hosting US military bases, warning that such collaboration could have “dangerous consequences.”
Plumes of smoke spotted in western Tehran
Shortly after the UAE statement, Iranian opposition media reported a huge explosion and a plume of smoke in western Tehran, with an Iranian fire department chief saying a seven-story building had been evacuated.
On Monday, three indian citizens were moderately wounded in an Iranian drone attack on the UAE's Fujairah oil industry complex, Fujairah's media office said.
Later on Monday, Iranian state television reported, citing a military official, that Iran had no premeditated plan to attack oil facilities in Fujairah.
What happened at the port was a result of the "US military's adventurism to create passage for illegal ship transit" through the Strait of Hormuz, added the official, according to Iranian state media.
Several Iranian attacks over past day
The UAE Defense Ministry confirmed that it confronted 12 Iranian ballistic missiles, three cruise missiles, and four drones on Monday.
Also on Monday, a South Korean ship sailing near the Strait of Hormuz was attacked, according to the Korean media outlet Chosun Daily, citing a government official.
US President Donald Trump acknowledged the attack later on Monday, urging South Korea to join the American effort in the Strait.