A car has flipped on its side following a crash on a busy roundabout. Emergency services have been called to Crittall’s Corner roundabout at the Sidcup Bypass this afternoon. Police and paramedics remain at the scene where the carriageway and A20 slip road remain blocked near the turn off for Sevenoaks Way. Fire crews are also in attendance and firefighters can be seen using what appears to be cutting tools on a black VW Golf in the middle of the carriageway. Another vehicle is also on its side. One eyewitness at the scene told KentOnline: “There’s a car on its side at Crittall’s Corner which …