The man who killed 60 people and injured hundreds during a 2017 mass shooting in Nevada lost thousands of dollars while gambling before the shooting, FBI documents show.

Wells Fargo is fined about $97.8 million for inadequate oversight of its compliance risks, enabling the apparent breach of US sanctions against Iran, Syria and Sudan, authorities said.

A federal judge struck down a mandate that health insurance plans cover preventative care such as screenings for cancer, diabetes and depression at no cost for patients.

A large group in northern Mexico surrendered to US border authorities, frustrated by recent asylum policies and shaken by a deadly fire at a nearby migrant detention centre.