One of Sydney's busiest tunnel roads was thrown into chaos today when a car exploded into a ball of flames . The silver Toyota four-wheel-drive burst into fire about 6:30pm on Sunday in the Domain tunnel , causing major traffic delays and widespread fear . The flames engulfed the car but luckily the three people travelling in the Rav 4 managed to escape without any injury . Scroll down for video . One of Sydney 's busiest tunnel roads was thrown into chaos today when a car exploded into a ball of flames . The silver Toyota four-wheel-drive burst into fire about 6:30pm on Sunday in the Domain tunnel , causing major traffic delays and widespread fear . It is still unknown what caused the incident but emergency services are investigating the situation . In a video posted on the Kyle and Jackie O show , a passer-by managed to capture the unbelievable scene . The car appears to be facing the right way in the tunnel but the whole bonnet is covered in flames . According to Live Traffic Sydney 's Twitter page , the tunnel will be closed for the remainder of the night as emergency repair work is conducted . Live Traffic Sydney updated Twitter users and have said that the tunnel will be closed from 10pm tonight for emergency repair work . The flames engulfed the car but luckily the three people travelling in the Rav 4 managed to escape without any injury . Traffic delays have subsided since the incident but motorists have been advised to avoid the area as the sprinklers in the tunnel were still running . All lanes were closed in both directions for one hour with traffic being diverted at Macquarie Street . However the tunnel reopened about 8pm and traffic began to enter the tunnel as normal . The car was towed and motorists were advised to avoid the area and use the Sydney Harbour Bridge . Traffic delays have subsided since the incident but motorists have been advised to avoid the area as the sprinklers in the tunnel were still running . The car was towed and motorists were advised to avoid the area and use the Sydney Harbour Bridge .
A car exploded into flames on one of Sydney 's busiest roads . The fire caused the closure of the Toyota tunnel . It is unknown what caused the fire and is under investigation . All three people who were travelling in the car escaped without injury .