In maps: Five days of strikes across the Middle East

US Defense Secretary Pete Hegseth said a US submarine sunk an Iranian warship in the Indian Ocean, as the US-Israeli war with Iran continued into a fifth day.

Around 180 people were thought to have been on board the Iris Dena, which was near Sri Lankan waters, when it was hit by a torpedo.

Israel on Wednesday said it attacked "security headquarters" in the Iranian capital Tehran overnight, Basij paramilitary and missile sites across the city, and it had continued its strikes in Lebanon.

Across the Middle East, Iranian strikes hit the US consulate in Dubai and US air base at Al Udaid in Qatar, the biggest American facility in the region.

President Donald Trump previously warned the strikes could continue for four or five weeks, adding that the US has "capability to go far longer than that".

The US-based Human Rights Activists News Agency (HRANA) says 1,097 civilians have been reported killed in Iran since 28 February. Six American military personnel have been killed since the conflict began, according to the US Central Command.

Where has been hit by strikes?

The Israeli military announced extensive joint strikes with the US on Saturday, destroying air defences in western and central Iran and the capital Tehran. The former Supreme Leader Ayatollah Ali Khamenei was killed in Tehran during the first wave of strikes.

There have been sustained strikes in the country since the military action began over the weekend. BBC Verify has so far confirmed visual evidence of strikes on 13 different locations in Tehran, with 12 other towns and cities across Iran also hit.

In Minab, in the south of Iran, at least 153 people including children were killed at a girls' school when it was hit by three missiles on Saturday, Iranian state media reported. The BBC has not been able to independently verify this.

Military sites have also been targeted in Kermanshah and Tabriz, and Iranian naval facilities in Konarak and Bandar Abbas in the south of the country. Analysis of satellite imagery has revealed damage to at least three Iranian missile sites, and the nuclear facility at Natanz.

On Wednesday Israeli strikes targeted dozens of sites across Tehran, including the headquarters of the Basij paramilitary and missile launch pads and other defence systems, an Israel Defense Forces (IDF) spokesperson said.

Israel has expanded operations into Lebanon, where it is targeting Hezbollah, the militant group that has long been backed by Iran. Operations have focused on strongholds in the southern suburbs of Beirut and areas close to the city's airport, as well as sites in southern Lebanon.

A hotel was among the buildings in the city hit by the attacks in Beirut on Wednesday. The night before Israeli officials said troops had entered Lebanon and were seizing "strategic areas" in order to prevent attacks on Israeli border communities.

The move came after Israel announced it was carrying out strikes in both Iran and Lebanon after Hezbollah launched missiles on Haifa earlier in the week.

At least nine people were killed and 27 injured in a missile strike on the Israeli city of Beit Shemesh on Sunday.

Iran has retaliated with strikes on Israel and US bases in the Middle East, and has been blamed for air attacks on Gulf states.

On Tuesday night Saudi officials said the US Embassy in Riyadh had been hit by a pair of drones, causing some minor damage and sparking a small fire.

Iranian strikes were reported on a major gas plant in Qatar, where the Ministry of Defense said it had shot down two Iranian aircraft, seven missiles and five drones.

In the United Arab Emirates (UAE), which includes the tourist destinations of Dubai and Abu Dhabi, three people were killed and several left injured in attacks carried out on Sunday, the country's defence ministry said.

On Saturday a luxury hotel in Dubai, The Palm Hotel, was hit in a strike and four people were wounded in an incident at Dubai International Airport.

Kuwait's military downed three US fighter jets in "an apparent friendly fire incident", the US Central Command said on Monday. All six crew were safely ejected and survived, officials said. The Ali Al-Salem airbase had also been targeted by a number of ballistic missiles, which the military said had been intercepted.

Kuwait's health ministry reported one death on Sunday.

In neighbouring Iraq, three drones were reportedly downed on Monday over Irbil airport, which hosts US-led coalition troops.

Four people were wounded by Iranian attacks in Bahrain, according to Bahrain's National Communication. On Saturday the US Navy's Fifth Fleet in the country had been "subjected to a missile attack" and on Sunday a drone strike on the US naval base caused a major fire, one official told the BBC, but there were no reports of casualties.

In Saudi Arabia, two drones hit the US embassy in the capital Riyadh and caused a "limited fire" the Saudi defence ministry said on Tuesday.

A fire was also reported at the Ras Tanura refinery, run by the country's state oil company, Aramco, after two drones were intercepted, officials a day earlier.

Officials in Jordan, which borders Israel, said its armed forces had shot down ballistic missiles targeting its territory.

Oman's state news agency reported on Sunday that Duqm commercial port had been targeted by two drones, injuring one worker.

What happened in the Indian Ocean and in Cyprus?

US Defense Secretary Hegseth said on Wednesday the US submarine sank "an Iranian warship that thought it was safe in international waters".

The Iris Dena, which was thought to have around 180 people on board, was hit in the Indian Ocean off Sri Lanka by a torpedo. Around 80 bodies have been found, Sri Lankan authorities said, and 32 had been rescued.

At midnight on Sunday an Iranian drone crashed into RAF Akrotiri, prompting the UK's Ministry of Defence to say family members would be moved.

On Monday, a Cypriot government spokesperson said a further two drones heading towards RAF Akrotiri had been intercepted.

This story is being updated daily by BBC Verify.