Intercape is desperately seeking help from the national government to end the siege against bus companies.
It says rogue members from the taxi industry are allegedly behind the attacks.
In the latest incidents, two drivers were shot and wounded in separate attacks while on duty this week.
Western Cape Police Commissioner Thembisile Patekile says authorities are investigating the various bus attacks, including those against Golden Arrow.
The national Transport Department says it will liaise with the security cluster about interventions.
In other news – Touching video of Katlego Maboe breaking down at Expresso has left Mzansi in tears
South African TV presenter Katlego Maboe broke down in an exclusive Expresso tell-all interview teaser that has brought social media users to tears.
In the teaser, a tearful Katlego fights back tears as he reflects on his turbulent-two years break from the show. Katlego is feeling extremely grateful and excited to return back to his hosting duties and cannot wait to showcase his impeccable skills once again for Mzansi. Learn More