It comes as police investigate alleged social distancing breaches at Bobby Storey's funeral
Michelle O'Neill was among hundreds of mourners as the former IRA man was laid to rest on Tuesday.
Sinn Fein says she won't be stepping aside under any circumstances - and she's insisted her actions were in line with regulations.
The DUP and Green Party have called for her to stand down - as has SDLP leader Colm Eastwood.
