Johannesburg - A serious accident that took place on the R21 southbound in Johannesburg early on Tuesday morning has caused some traffic delays around OR Tambo Airport. Beeld reports that a vehicle crashed into a bridge on Rondebult Road at the N12 at about 05:00 this morning. One person was killed and the vehicle destroyed.All lanes were closed to traffic shortly after, but SANRAL Traffic has tweeted that they have, in the mean time, been reopened. If you are on your way to the airport, however, expect slow moving traffic, congestion and delays. 28693.(Update) Accident; R21 Southbound; After Olifanstfontein Off-ramp; All lanes open; Incident cleared; Slow moving traffic.— SANRAL TRAFFIC (GP) (@itrafficgp) June 24, 2014Are you there? Tell us what the traffic is like now in the comment section below. Come join our travel community! Like us on Facebook, follow us on Twitter, hang out with us on Google+, snap away on Instagram and share your inspiration on Pinterest.Or subscribe to our newsletter for weekly updates on the latest NB travel news.