Western international locations hiss they’ve evidence that an Iranian missile shot down a Ukrainian airplane cease to Tehran airport on Wednesday.
Iran has denied any involvement, and hiss the airplane used to be no longer hit by a missile.
So what’s the evidence that an Iranian missile used to be guilty?
What is the video evidence?
Video photos shared on Iranian social media accounts looks to negate the moment of impression on Ukrainian Global Airlines flight PS752.
The photos instruct a flash adopted by a loud bang. The airplane then continues to soar, turning relief within the route of Tehran airport, then crashing into the bottom in a ball of flame.
BBC Monitoring has indentified the attach of abode from where the video used to be shot to Parand, a residential dwelling west of Tehran.
Or no longer it’s about 30km (18miles) from Imam Khomeini Global Airport, where the aircraft began its trek.
Rows of housing blocks, a construction space and a storage tank, which all seem within the video, match a Google Earth image of the attach of abode, according to BBC Monitoring.
Are there clues within the photos?
There within the mean time are many photos of the airplane wreckage on hand on media sites.
These photos, and the next detailed examination of the wreckage itself, will relief crucial clues such as burn marks indicating a fireside, explosive residue which might perchance perchance presumably display cowl a bomb on board or that you simply could be in a space to take into consideration shrapnel harm from a missile.
An anti-aircraft missile is continually designed to detonate at a distance from the purpose, sending shrapnel in direction of it, inflicting maximum harm.
Puncture holes pointing inwards might perchance presumably display cowl an explosion or harm from outdoors the aircraft.
And detailed prognosis of the size and shape of any holes might perchance presumably give a signal of the form of missile feeble.
At this stage, or no longer it’s difficult to trust a look at loads of the photos that are being shared which – or no longer it’s claimed – instruct harm in step with a missile attack.
Some instruct the nostril of a missile from the Russian-made Tor missile machine.
These photos trust no longer been independently verified yet and we do no longer know where or as soon as they were taken, because there are no identifiable landmarks.
US intelligence sources hiss two missiles were fired, according to US media.
Questions had been raised about why the nostril of the missile in these photos looks to be intact.
However, an educated we trust spoken to explains that or no longer it’s no longer ultimate-looking to leer the nostril – which comprises its guidance machine and does no longer itself impression the purpose – intact and at a distance from the smash space.
There are reports from inside of Iran that the smash space has already been bulldozed and the wreckage cleared away. Elizabeth Palmer of CBS data reported that “nearly all pieces” of the airplane had been eliminated by Thursday.
This makes the digital evidence gathered to this point a crucial component in figuring out what truly came about to the aircraft.
What about other evidence?
There are two so-known as “black boxes”.
The flight data recorder captures all the pieces happening with the airplane’s programs. This might perchance occasionally doubtless presumably also be a in point of fact indispensable in revealing if there had been any inner malfunctions.
The convey recorder is designed to safe two hours of audio from the cockpit, and can trust to quiet relief crucial clues, as it recordsdata what the flight crew were asserting on the time.
Iranian officials hiss it will most likely presumably soak as much as two months to receive data from the black boxes.
It takes a in point of fact lengthy time to analyze because there is a big quantity of data, says aviation educated Julian Bray. However, he additionally says that professional analysts might perchance also fair be in a space to find an preliminary thought from the data inside of a pair of weeks.
There might perchance be a restrict to what the black boxes can display cowl if a bomb or missile destroys the aircraft. They will also simply terminate working, though the convey recorder might perchance also purchase up a sound wave ultimate beforehand.
Some investigations can final years. A probe into the smash of an Ethiopian airplane off Beirut in 2010 took two years to entire, even supposing the black boxes were despatched to France, which has a pair of of the arena’s top investigators.
How might perchance presumably it trust came about?
The Iranian militia would had been on very excessive alert ultimate hours after the originate of Iranian missiles at US targets in Iraq, in anticipation of that you simply could be in a space to take into consideration retaliatory strikes by the US.
The dwelling where the airplane came down used to be no longer ultimate cease to the capital, Tehran, but additionally a militia incorrect of the Iran’s Revolutionary Guards.
There are nevertheless extra than one precautions that ought to had been in attach of abode to terminate a civilian airliner being centered in error.
The radar machine feeble by the missile operators is designed to purchase up identifying signals from all civilian aircraft.
“Flight PS752 used to be transmitting a transponder code showing its civilian identification registration, attach of abode and altitude,” says Justin Bronk, a Compare Fellow on the Royal United Providers and products Institute, “and the missile radar operator must had been in a space to leer that data.”
If this does point to to be a missile strike on a passenger airplane, it will most likely presumably no longer be unheard of.
In 2014, a Russian-made missile hit a Malaysian civilian airliner over Ukraine, killing 298 of us.
An Iranian aircraft used to be shot down in error in 1988 by a US navy warship, the usVincennes, killing 290 of us.
In 1983, a Soviet fighter jet took down a Korean passenger airplane after it strayed into Soviet airspace. All 269 of us on board died.