The BBC’s Analysis Editor takes a look at the latest round of tariffs announced by President Trump – and what the US has got in return.

Dozens were killed when a passenger plane and helicopter collided on 30 January and fell into the Potomac river.

US President Donald Trump has paused tariffs of 25% on Canadian goods for 30 days, but the threat looms.

Crews lift the American Airlines’ plane wreckage from last week’s fatal crash out of the Potomac River.

Thousands of people marched to Los Angeles City Hall before blocking a major freeway.

The Star-Spangled Banner was booed after President Donald Trump announced he would impose tariffs on Canada.

People gathered for the annual Groundhog Day winter forecast in the town of Punxsutawney, Pennsylvania.

A small plane crashed into several buildings on Friday evening, killing all six people on board and one person on the ground.

Ryan O’Hara, 28, was the crew chief of the helicopter that collided with the passenger plane on Wednesday.

BBC Weather’s Elizabeth Rizzini looks at the meteorological phenomenon hitting North America’s west coast.

Dean Naujoks filmed the moment he came across American Airlines-branded sugar packets and a document with landing gear procedures.

A salmon farm’s closure led to a race against time as volunteers helped process the thousands of live fish.

The BBC’s Analysis Editor Ros Atkins on the unanswered questions around a fatal crash between a commercial airplane and a military helicopter near Washington DC.

A pair of young figure skaters, their mothers, and two Russian coaches were among the 60 passengers on board the jet.

BBC Verify’s Nick Eardley has taken a closer look at what we know so far about the collision.

Audio from moments before collision captures controllers asking the military helicopter if it has seen the passenger jet.

An American Airlines flight collided in mid-air with a military helicopter on Wednesday night in Washington DC.

Jimmy Mazeo says he thought he saw shooting stars, adding that he didn’t “think much of it” until he saw emergency services arriving.

An American Airlines jet carrying 60 passengers collided in mid-air with a military helicopter with three US Army soldiers aboard.

The woman explained that she hadn’t heard anything because her hearing aids were charging.