Shadow home secretary Andy Burnham has criticised his party for failing to deal effectively with allegations of anti-Semitism made against Labour.
Mr Burnham said comments made by Ken Livingstone, claiming Hitler supported Zionism “before he went mad”, were ill-advised, offensive and distasteful.
Mr Livingstone was suspended by the party, a day after MP Naz Shah was suspended over comments on Facebook.
Mr Burnham said comments were not dealt with properly and quickly enough.
Leader Jeremy Corbyn has denied there is a crisis in the party on the issue.
The row exploded on Thursday after a radio interview that former London mayor Mr Livingstone did with BBC Radio London, defending Ms Shah, the party’s MP for Bradford West.
By BBC Political Editor Laura Kuenssberg
For years it has been more surprising when Ken Livingstone hasn’t raised hackles than