The exit of Kamal Tabet, Citigroup's star buyout banker whose decision to take a sabbatical was reported exclusively by Financial News websites yesterday, has been followed by a further departure from his division.

Mikael Dahl, co-head of the European financial entrepreneurs group, has decided to retire from the firm later this year, according to Tom King, head of Citigroup’s European investment bank, in an internal memo to staff. Dahl has been with the bank for 24 years.