The experimental weapon is hailed as having a potentially unlimited range - though Western experts have questioned its value.
Most Recent Articles
Firms ordered to reduce forever chemicals in drinking water sources for 6 million people
The persistent pollutants which build up in the environment have been linked to serious illnesses.
At least 20 dead after magnitude-6.3 earthquake hits Afghanistan
The quake struck near Mazar-e Sharif, one of Afghanistan's largest cities, in the early hours of Monday.
What do we know about suspect in train stabbings?
One person remains in hospital with life-threatening injuries from the Huntingdon train knife attack
How India finally embraced World Cup fever
After a slow start to the group stage where rain was discussed just as much as the cricket, India's eventual World Cup success showed what is possible when given the platform.
Nine-month-old baby killed in dog attack
Officers and paramedics went to a property in Rogiet, Monmouthshire, on Sunday evening.
Israel confirms Hamas returned bodies of three soldiers held hostage
Authorities identify the remains handed over on Sunday, bringing to eight the number of hostages' bodies still to be found in Gaza.
Credit scores to include rental payments, says major ratings agency
The credit ratings agency says the change will give lenders a more complete view of borrower behaviour.
Will Alexander-Arnold show what Liverpool are missing on return?
Trent Alexander-Arnold returns to Liverpool for the first time since moving to Real Madrid on Tuesday, when he will discover if absence has made Anfield hearts grow fonder.
Trump says he doubts US will go to war with Venezuela
In the same interview, the US president suggests Nicolás Maduro's days as the South American country's leader are numbered.
I'm the luckiest man alive, but also suffering, says Air India crash sole survivor
Viswashkumar Ramesh describes the pain and anguish he is enduring despite surviving the disaster.
'No idea who he is,' says Trump after pardoning crypto tycoon
The president pardoned Changpeng Zhao, the co-founder of the world's largest crypto exchange, in October.
Van Dijk rejects Rooney's 'lazy criticism'
Liverpool captain Virgil van Dijk says Wayne Rooney blaming a lack of leadership for the Anfield side's recent poor form is "lazy criticism".
Play now
Think you can work out where's hotter and colder than you today? Find out by playing our game
Sir Anthony Hopkins looks back on a life of luck, loneliness and his legendary roles
The Hollywood legend sat down with the BBC in an exclusive, yet candid, interview about his achievements as well as his regrets
China intimidated UK university to ditch human rights research, documents show
Sheffield Hallam University apologises to Professor Laura Murphy for restricting her academic freedom.
'Heroic' train worker saved lives, police say, as man, 32, only suspect in stabbing
The staff member is in a life-threatening condition after trying to stop the attacker on a train to London King's Cross.
At least eight dead after magnitude-6.3 earthquake hits Afghanistan
The quake struck near Mazar-e Sharif, one of Afghanistan's largest cities, in the early hours of Monday.
Credit scores to include rental payments, says Experian
The credit agency says the change will give lenders a more complete view of borrower behaviour.
World awaits landmark US Supreme Court decision on Trump's tariffs
The top US court will decide if many of Trump's tariffs are legal in a case with major implications for presidential power and billions of dollars.
The Papers: 'Train stab horror' and 'Devil not going to win'
Most of Monday's papers lead on the aftermath of the Saturday night stabbing attack on a train travelling from Doncaster to London.