Labour MP Margaret Hodge faces "action" by the party after reportedly swearing at Jeremy Corbyn and calling him an "anti-Semite".
A spokesman for the Labour leader said what had happened was "clearly unacceptable between colleagues".
The alleged confrontation came after Labour adopted new guidelines on anti-Semitism, which were criticised by some Jewish leaders and some MPs.
https://www.bbc.co.uk/news/uk-politics-44875908