Grace Mugabe
Grace Mugabe speaking at a rally in 2013Getty

Zimbabwe's First lady Grace Mugabe has said her son's drink and drug lifestyle has left her with "sleepless nights" and has asked for an intervention from God.

The wife of Robert Mugabe described how "demons" have affected Robert Mugabe Junior and Chatunga Bellarmine Mugabe following their recent "wild" behaviour, including getting thrown out of a luxury apartment block in Johannesburg because of their partying.

One resident of the block told Zimbabwean media at the time: "The boys were usually up during the night partying with different ladies, drinking and smoking.

"There were almost daily complaints by other tenants about the noise coming from [their apartment]."

The pair were reportedly finally thrown out after a "violent brawl" by the complex's entrance, which left one of their security team with serious injuries. The fight was reported to have stemmed from a "a dispute over women", reported News 24.

The incident forced the first lady to make an emergency trip to the South African city in order to find emergency accommodation for her sons.

Mrs Mugabe has now spoken out about her concerns about her son's behaviour while attending her sister's birthday party in Shamva, reported the New Zimbabwe.

She said: "Nowadays there are spirits attacking our children. The spirit of drinking, drug abuse and doing other abnormal things way beyond their age.

"I am telling you because the behaviour of children does not matter if they are the president's children or not. All children are mischievous these days. I have turned to God for wisdom. I ask the Lord for intervention and pray everyday when I wake up."

Following the comments from the first lady, a spokesperson for the Zimbabwe Civil Liberties and Drug Network said: "The admission that her family has been seriously affected by drug misuse is a warning that it is high time that all Zimbabweans put their heads together and fight the soaring drug menace in Zimbabwe.

"As the Zimbabwe Civil Liberties and Drug Network, we sympathise with the first lady and many other parents in the same situation. We also highly appreciate her courage in coming out in the open and indicating that drug misuse knows no boundaries as it is affecting people from all walks of life."

The two sons were relocated to from Dubai and Zimbabwe to South Africa earlier this year following concerns about their safety. Reports at the time said the Mugabes thought the decision was made after believing the pair could be targeted "not just for crime, but also for political reasons'."