Director general Tony Hall apologises a day after Radio 1Xtra DJ Sideman quit over use of the slur.
It comes as many enjoy another hot day, with forecasters predicting highs of 35C in southern England.
Boris Johnson wants schools in England to be the last sector to close in any future local lockdowns.
A Freedom of Information request shows a rapid rise in firms in June saying they were cutting staff.
Greater Manchester's mayor says the Covid test-and-trace system needs to be "fixed urgently".