Tsuru Sushi, the Japanese restaurant group, is to open the fourth site under its Tonkotsu concept before the end of the year in London’s Dalston.

The group, which is led by Emma Reynolds, is understood to have secured a site in Mare Street for the opening of a 50-cover site this December.

It recently opened its first site in a food court under the format in London’s Selfridges ground floor food hall.

Earlier this year Reynolds told M&C Report the group is in discussions with private equity houses to secure capital investment to expand both its Tsuru Sushi and Tonkotsu Bar and Ramen formats.