Heavy smoke from wildfires has prompted air quality warnings in midwestern US cities such as Chicago, as well as parts of Canada.

A wealthy Las Vegas financier has revealed the shocking text messages from OceanGate’s CEO after he declined a trip on board the doomed Titan sub.

The company has also grappled with a series of mechanical problems and inclement weather conditions that forced the cancellation or delays of trips in recent years, according to court records.

The award-winning film director and sea expert has made a bold claim about missing submersible Titan, following the news it imploded.

The company behind the expedition of the missing Titanic sub has confirmed the five men on-board have “sadly been lost”. Follow our live updates.

Oxygen has run out on board the missing Titanic sub but the US Coast Guard remains hopeful as underwater robots scramble to save ‘Titan Five’.

These 5 vessels are key to the search for the Titan submersible

There is a chilling connection between the wife of the missing submersible pilot and a couple who died on the Titanic in 1912.

The Coast Guard said there are five surface assets and two remote-operated vehicles searching the area the noises came from, with more arriving in the coming day.

As authorities race to find the Titan, there has been a new arrival on the scene — giving an idea of how the craft and its five crew members could be saved.

Smoke from Canadian wildfires shrouded New York in a record-breaking apocalyptic smog Wednesday as cities along the US East Coast issued air pollution warnings and thousands evacuated their homes in Canada. 

Smoke from hundreds of Canadian wildfires continued to cast a haze over populous areas of the eastern U.S., and could last for days, as polluted air sent people with asthma to their doctors, disrupted air travel and altered school schedules.

Millions of people in North America have been advised to wear N95 masks outdoors due to poor air quality levels sparked by intense wildfires in Canada.

Millions of Americans in the Midwest and the Northeast are under air-quality alerts as smoke moves south from more than 400 active Canadian wildfires.

South Korea just delivered new tanks and guns to Poland only months after the contract was signed

Throngs of Canadians flood streets, wave flags to witness Charles's coronation

The CBC has objected to Elon Musk’s ‘government-funded media’ designation

A new US-Canada border deal meant to halt the flow of asylum seekers at unofficial border crossings has taken effect.

Last year, nearly 40,000 migrants crossed into Canada at an unofficial border crossing at the end of a remote rural road in upstate New York - a record number - to seek asylum. Many are driven by the belief that the country is more welcoming than the US. But can Canada handle the influx?

Biden's visit is expected to focus heavily on Haiti, where Washington wants Canada to take the lead