A construction worker fell from the roof of the Minnesota Vikings’ new stadium yesterday and plunged approximately 50 feet to his death, according to news sources.

A second worker was seriously injured on the roof – not in a fall – in circumstances that are being investigated.

Work at the downtown Minneapolis site was suspended after the accident, which occurred less than an hour into the worker’s shift. The man who died was an employee of Berwald Roofing Co. Mortenson Construction is the general contractor on the $1 billion+ project, which employes about 1,200 people.

It was unclear whether fall protection was being used at the site.

The new stadium is scheduled to open in August of 2016, in time for the Vikings’ preseason games. Mortenson said work would likely resume on the stadium today, and that counselors would be at the site and available to talk to workers.