Brexit deal's N.Ireland protocol not sustainable - UK's Frost

The element of the Brexit deal which relates to trade with Northern Ireland is not sustainable and Britain is keeping all options on the table over how it might act, British minister David Frost said on Monday.

"We all know the protocol is not sustainable in the way it's working at the moment," Frost told a parliamentary committee, saying barriers on goods moving between mainland Britain and Northern Ireland needed to be removed.

"All options are on the table."