Controversial blogger Robert Alai is in mourning after his sister passed away.

Alai took to his Twitter page to offer his condolences to his late sister, Hellen Agola Alai.

According to her obituary posted on Tuesday, Hellen of City Clock Kenya Ltd passed away suddenly on Saturday, December 16.

A harambee towards the funeral expenses will be held on Thursday, December 21 at the All Saints Cathedral from 5:30pm.

She will be buried on Saturday, December 30.