Iran’s Revolutionary Guard said a tanker caught fire early Wednesday after striking a naval mine while traveling along an unauthorized route through the Strait of Hormuz, a key waterway, Iranian state media reported.

The United Kingdom Maritime Trade Operations Center, a British military agency that monitors maritime safety, said a tanker was involved in an incident while transiting the strait.

Italian authorities evacuated some 300 schools across Italy on Wednesday after receiving an emailed bomb threat, the latest disruptions affecting European institutions following hoax bomb threats against airlines and broadcasters in recent weeks.

Italian Premier Giorgia Meloni said in a statement that there was no indication of any "concrete danger" to Italian schools and said the threats appeared aimed at "generating alarm and concern."

Russia and Ukraine have agreed their biggest ever release of prisoners after two days of U.S.-mediated talks in Abu Dhabi, US envoy Jared Kushner told reporters on Wednesday.

"One of the positives is we agreed that we're going to have the biggest humanitarian release of prisoners, which we're going to finalise the numbers tomorrow," he said.

U.S. envoys Steve Witkoff and Jared Kushner will meet Russian President Vladimir Putin in Moscow on Thursday, Kushner said at the end of trilateral talks in Abu Dhabi, before travelling to Dublin to debrief Ukraine's Volodymyr Zelensky.

Kushner said the meeting with Putin would "go over what was discussed today and try to make more progress on some of the issues that we discussed because we see some openings.

Russia and Ukraine have resumed U.S.-mediated talks in Abu Dhabi for a second day, Kyiv's chief negotiator Rustem Umerov said on Wednesday.

"We are starting the second day of negotiations. First, a trilateral format together with the United States and Russia. After that, we will hold a separate meeting with our European partners. We are working," Umerov said on Telegram.

Iran's foreign ministry on Wednesday designated Argentina's navy and air force as terrorist organizations, following a similar move by Buenos Aires months earlier.

In late March, Argentina designated Iran's Islamic Revolutionary Guard Corps, the ideological arm of the military, as a terror organization, citing the IRGC's support for Lebanese militant group Hezbollah.

Millions of Spain's workers are striking Wednesday to demand that the government remedy the nation's housing crisis less than three weeks before a national election that could catapult the far right to power.

Spain's first general strike in 14 years is expected to cause delays to the widely used public transport system and lead to the slowdown or shuttering of businesses, factories and shops across the eurozone's fourth largest economy.

The U.N.'s top human rights body has agreed by consensus to push back a regular review of the U.S. human rights record until January, after the Trump administration snubbed the process.

The move by the Human Rights Council buys it more time to try to coax the U.S. government to take part – after the United States was set Tuesday to become the first U.N. member country ever to fully reject such a review.

France's foreign minister said Tuesday that Paris ruled out "nothing" to respond to a major cyberattack on hundreds of supermarket fridges in October that it has blamed on Iran.

Hundreds of French supermarkets were hit in the October 11 and 12 cyberattacks, which raised the temperatures in their refrigerators and freezers, forcing many to throw away entire inventories of perishable food.

U.S. and European negotiators on Tuesday expressed their "shared commitment to a strong post-war European security architecture" and insisted Ukraine's territorial integrity must be respected, on the sidelines of talks to halt Russia's war.

"The participants reaffirmed their shared commitment to a strong post-war European security architecture and arrangements, and were clear that a strong NATO will remain central to Euro-Atlantic collective defense," a joint statement from U.S., European and Ukrainian representatives said.