The Green Party will announce who will replace Caroline Lucas MP as leader later.
The Brighton Pavilion MP announced she would be standing down as leader earlier this year to make way for a new generation of activists to enter parliament.
The 51-year-old will continue to serve her Sussex constituency.
More top news
Two people died, two remain in hospital, one of them is critically ill.
Offices were called to Middleton Road at 5pm on Saturday. Two men were taken to hospital.
Victoria Cilliers, who plummeted 4000 ft when her parachute failed to open, says she doesn't believe her husband tried to kill her