Fresh blasts were heard across the Gulf cities of Dubai, Doha and Manama this morning, after a day of Iranian strikes in retaliation for US and Israeli attacks.
Blasts were also heard over Jerusalem after incoming missiles were identified.
Thick black smoke was seen rising on the clear morning horizon in the south of the city of Dubai in the UAE with blasts also heard in Bahrain's capital Manama and in Qatar.
Two people were injured in Dubai after shrapnel from drones fell over two houses when they were intercepted, a Dubai Media office statement said.
Dubai's international airport, its landmark Burj Al Arab hotel and man-made Palm Jumeirah Island all suffered damage.
Air raid sirens and explosions were also heard in Jerusalem.
Watch: Smoke rises in Doha, Qatar after shrapnel falls on industrial area
"Sirens were sounded in several areas across the country, following the identification of missiles launched from Iran toward the State of Israel," the military said.
"At this time, the Israeli Air Force is operating to intercept and strike threats where necessary to remove the threat."
The new explosions came after a day of deadly Iranian strikes in the Emirati capital Abu Dhabi, as well as hits on military bases and civilian infrastructure across the Gulf - except for mediator Oman.
Iran's attacks on the Gulf raised fears of a wider conflict and rattled a region long seen as a haven of peace and security in the turbulent Middle East.
Yesterday, across the UAE, Iran fired 137 missiles and 209 drones at the territory, the country's defence ministry said, with fires and smoke reaching landmarks The Palm and Burj Al Arab.
At Abu Dhabi's airport, at least one person was killed and seven wounded during what the facility's authority called an "incident".
Dubai airport, the world's busiest for international traffic and Kuwait's airport were also hit.
In Qatar, officials said Iran had launched 65 missiles and 12 drones towards the Gulf state, most of which were intercepted, but eight people were injured in the salvos, with one of them in critical condition.
On the first day of the strikes, smoke poured from US bases in Abu Dhabi and Bahrain's capital Manama, home of the American navy's Fifth Fleet, witnesses saw, with bases also targeted in Kuwait.
The oil-and-gas-rich Arab monarchies, lying just across the Gulf from Iran, are long-term American allies and host a clutch of US military bases.
In Manama, the Iranian attacks saw drones and shrapnel slam into residential buildings, with video on social media showing smoke and fire from high-rises.
Yesterday's unprecedented barrage also targeted Qatar's Al Udeid base, the region's biggest US military base, as well as Riyadh and eastern Saudi Arabia.
Dublin Airport confirmed yesterday that Qatar Airways had cancelled its full Sunday schedule of flights between Dublin and Doha while both Emirates and Etihad Airways had cancelled their early morning services.
