Tom Spencer and Daniele Palumbo
BBC Verify

Recent satellite images show the presence of additional aircraft at a key US air base in Jordan, as Washington continues its military build-up in the Middle East and the Trump administration considers strikes on Iran.

The images, captured by Planet Labs on 21 February, indicate more transport aircraft and fighter jets have been deployed at Muwaffaq Salti Air Base, located 28 miles (45km) from the Jordan-Iraq border.

The images also show a significant quantity of what appears to be equipment unloaded from two newly arrived C-17 Globemaster transport aircraft.

The equipment appears to have been deposited in areas close to the aircrafts initially, being moved in other parts of the base where, in other images, we can also see an increase in the number of containers.

Another parking area has also been filled up with what appear to be 24 F-35 fighter jets.

Aisha Sembhi
BBC Verify journalist

We cover AI-generated fakes and manipulations almost every day on BBC Verify Live. This content is becoming increasingly sophisticated so it's more difficult than ever to separate it from what is real.

But how do we know when something is AI-generated? We put together this 90-second guide talking you through four methods we use to identify the fakes.

Have a watch below:

Farida Elsebai
BBC Verify

Satellite images captured on Tuesday show an oil depot in Russia’s Tatarstan region on fire following a reported Ukrainian drone attack on Monday night.

Local officials and Russian media reported explosions and fire in the early hours of Monday morning at the facility run by Transneft, which is around 750 miles (1,200 km) from the Ukrainian border.

We verified footage from Monday showing the depot ablaze, and later confirmed through subsequent videos that heavy smoke and fire were still visible into early Tuesday morning.

Satellite imagery captured by Planet Labs indicates that two large cylindrical oil storage tanks at the facility were damaged.

The UK has announced on Tuesday nearly 300 new sanctions on Russia. Among the named entities was Transneft, which is one of the world’s largest oil pipeline companies and is responsible for transporting over 80% of Russian oil exports.

Jake Horton
BBC Verify

BBC Verify’s fact-checking team was listening to US President Donald Trump’s marathon State of the Union address to Congress last night.

He told US lawmakers that the "country is winning again" and made the economy and affordability key themes of the speech, which lasted an hour and 47 minutes.

Trump was right to say that the rate of inflation has slowed since he took office at the start of last year, although prices are still rising at 2.4% a year.

However several of his claims on the economy were exaggerated - including that gasoline in the US “is now below $2.30 a gallon in most states and in some places $1.99 a gallon”.

As of 24 February, the national average price for a gallon of gasoline - or petrol - in the US was $2.95 (£2.57), according to the Automobile Association, external(AAA), external.

The only state we could find anywhere near $2.30 a gallon is Oklahoma with an average price of $2.37 a gallon. That is the state with the lowest average price listed by the AAA., external

During Trump's speech, the website GasBuddy, external said drivers could buy gasoline at below $2 per gallon at four stations out of an estimated 150,000 in the US.

You can read more fact-checks in our full piece here.

Sarah Jalali, Ghoncheh Habibiazad and Shayan Sardarizadeh
BBC Monitoring, BBC Persian and BBC Verify

Verified video shows student-led protests in Iran have taken place at least 13 universities since Saturday, after footage emerged yesterday of demonstrations at several new major institutions.

Among them is Sajjad University of Technology in Mashhad, Iran’s second-largest city. One video shows a group of students at the university's main courtyard chanting against the paramilitary volunteer Basij force, part of the Islamic Revolutionary Guard Corps (IRGC) branch of Iran’s military, whose members have been clashing with student protesters this week.

Footage filmed at the Shandiz Institute of Higher Education, also in Mashhad, shows students holding a gathering near the university's main building.

Image source, Telegram/EEAUT

We’ve also confirmed several videos from Khajeh Nasir University in the capital Tehran. In one clip, pro and anti-government protesters can be seen in front of the school of mechanical engineering.

Anti-government students are heard chanting “long live the Shah”, while pro-government students wave the flag of the Islamic Republic.

Science minister Hossein Simaei-Sarraf said in a video published by Iranian media yesterday that he would not tolerate any instances of “rioting” at universities.

We will continue to monitor the latest from Iran today and verify new footage of the ongoing protests.

Adam Durbin
BBC Verify Live senior journalist

Verified videos show protests are ongoing at universities in Iran, after days of student-led demonstrations have been held at least 13 institutions across the country since the weekend. Footage we have reviewed shows students chanting against Iran’s security forces and in support of the former monarch, as well as counter-protesters waving Iranian flags in support of the government.

We’re also monitoring the ongoing build-up of US military planes and warships in the Middle East as the the Trump administration continues to apply pressure to Iran and float the possibility of strikes. In his State of the Union address yesterday, Donald Trump said his “preference is to solve this problem through diplomacy”, but also made clear he would “never allow” Iran to have nuclear weapons.

Also on the US president’s speech to US congress, our fact checkers have examined some of the wide-ranging and misleading claims Trump made over the course of his 107-minute address.