South African leader of the Democratic Alliance (DA) Helen Zille attends the formal opening of parliament in Cape Town on February 12, 2015.
JOHANNESBURG - The Democratic Alliance has suspended Western Cape Premier Helen Zille.
Zille has been under investigation for a series of controversial tweets on colonialism.
DA leader Mmusi Maimane said a notice of suspension will be served on Zille.
She is suspended from all party activities pending the outcome of a disciplinary process.
Maimane said he asked Zille to tender an unreserved apology but she declined.
#Maimane; 'It has become clear that Premier #Zille & I hold fundamentally different views on the direction we need to go' pic.twitter.com/pzp1Ogtlik
— Thulasizwe Simelane (@ThulasSims) June 3, 2017