Opposition MP Nikol Pashinyan was taken into custody shortly after a TV exchange with PM Serzh Sargsyan.
The French leader says there are no other options for the nuclear deal, which Mr Trump opposes.
Thousands of anti-government protesters march through Yerevan after their leader is detained.
What happened in Salisbury has been disputed by Russian journalists.
Barcelona turn on the style to hammer Sevilla and win the Copa del Rey for the fourth successive season.
A church in Utrecht, in the Netherlands, plays a tribute to dance music artist, Avicii, who died on Friday.
Thousands gathered in the city's Sergels Torg plaza to remember the Swedish musician, who died on Friday.
Armenia's president walks into a crowd of protesters to try to defuse a crisis about his predecessor.
International experts make a much-delayed examination of the site of a suspected attack in Douma.
It's not yet known how he died but he had been suffering from severe pancreatitis.
Members of the Security Council seek to heal divisions over Syria during a meeting in Sweden.
One of the world's biggest dance music stars dies in Oman, with no cause of death announced.
The endangered animal died in Italy during an attempt to fit him with a collar to track movements.
Comedians in Germany have been caught up in the county’s strict online hate speech laws.
Swedish DJ Avicii, one of the world's biggest electronic dance music stars, has died in Oman aged 28.
Sister Agnès-Marie Valois treated captured Canadians after the disastrous battle of Dieppe in 1942.
The messaging app is working around attempts to block it by authorities.
The main train station reopens after the evacuation of about 10,000 people.
Spanish victims reject an apology by the armed separatist group ahead of its expected dissolution.
The men who were apart of the 1943 "Dam Busters" air-raid on Germany are featured in a portrait exhibit.
The Kremlin says the US is deliberately making it difficult for Aeroflot crews to get entry visas.
An Algerian woman is denied citizenship for refusing to shake the hand of an official.
The man fled custody in Iceland and got on a plane that was carrying the country's PM.
Police cordons seal off parts of the city but officials insist there is no danger to the public.
But the BBC understands the UK's plans have come in for sustained criticism from EU officials.
Makers of meat-free foods to be banned from using terms like sausages or steaks to describe products.
Manager Arsene Wenger is to leave Arsenal at the end of the season, bringing to an end a near 22-year reign at the club.
Fenerbahce and Besiktas' Turkish Cup semi-final second leg is abandoned after the visitors' boss Senol Gunes is hit on the head by an object thrown from the crowd.
Twelve people manage to get out of the building in north-east London before firefighters arrive.
Designer Stella McCartney says fashion is a medieval industry, which produces a huge amount of waste.