Bond Air Services says it has temporarily grounded 38 EC135-model helicopters globally after discovering a "defect", Reuters reports.
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The BBC, The Daily Mail, The Guardian, and Buzzfeed were among organisations not allowed access to a government meeting.
Mexico's Foreign Minister has warned Donald Trump against imposing a tax to pay for a border wall between the two nations.
Rain will affect many northern areas at first, pushing further south through the day.