Explainer: Russia links and Comey memo leave White House in turmoil

Sharing intelligence information confirms fears US president is too close to Putin

Those who were previously seen to be alarmist in reaction to and coverage of Trump have been proven correct

Analysis links sarin gas attack on Khan Sheikhoun to regime, says Jean-Marc Ayrault

Like the rest of us, Russia is trying to understand Trump’s “real intentions”

US secretary of state in Italy to meet with foreign ministers from G7 group

Russia and Turkey are to act as guarantors in the peace deal, as the US is left sidelined

Army declares new operation in area as Russia, United States fail to agree on reviving truce

Barack Obama warns ‘grave differences’ remain between the two superpowers

Civilians and gunmen to be evacuated from region left in ruins by constant shelling

John Kerry says aid will be airifted to cut-off areas

Men towed motor boat almost 3000km from Melbourne to Cairns to sail to Indonesia and onwards to Syria

Opposition fighters face ‘high price’ for civilian deaths as violence in city escalates

Talks held about ‘deconflicting’ situation following second day of Russian air strikes

Phone call the first conversation between Russian and US leaders since February

Talks as relations between Washington and Moscow plummet to post-Cold War lows

US secretary of state strikes up rapport with Iranian counterpart

While Merkel has faith in sanctions, others see arms as more persuasive

German chancellor to meet US president amid divisions on Ukraine military aid

Sergey Lavrov attacks US ‘obsession’ with global dominance and EU’s ‘connivance’ in region

Washington to give anti-IS tribesmen $18-$24m worth of arms

Aid convoy remains stalled inside Russia amid confusion over when inspections will start

Court of arbitration in The Hague rules major oil company seized illegally

Russian president blames West for ‘chaos and civil war’ in Ukraine ahead of Sunday’s election

US and EU expected to announce tightening of sanctions against Russia tomorrow

US and Russia agree diplomatic solution needed but four hours of talks fail to break deadlock

Obama says US and Europe united on ‘imposing a cost’ on Russia over Ukraine

Thousands maintain rally in Kiev’s central square

Washington is showing wisdom in its policy on Syria, and its new relationship with Iran may be more vital still

Agreement represents breakthrough and rare unity between Russia and US

US says Assad could end crisis by allowing international community to take over arsenal

UN chief says chemical weapons team needs four more days for Syria mission

Syrian president claims it would result in terrorism being exported back to Europe

Lavrov says any attempt by US to enforce no-fly zone would violate international law