The prime minister has invited Swinney to work with him on developing deeper devolution for Scotland, during his first substantive visit to the country since moving into Downing Street.
Burnham said he wanted regions to have more power, linking the wider devolution agenda to his discussions with Swinney. The invitation would involve the two working together on further arrangements for Scottish devolution.
The source material does not provide details of the specific powers under consideration or set out a timetable for future discussions. It also does not include a response from Swinney or further information about the location of the visit.
The latest position is that Burnham has called for closer cooperation with Swinney on the issue, while the precise scope and next steps for any deeper devolution remain unspecified.