A section of the A1 highway in Germany, between Kamener Kreuz and Dortmund/Unna, has been closed since Wednesday evening due to a gas leak from a hazardous materials truck.

The leak, involving flammable ethylene gas, has been sealed, but the highway remains closed as experts assess the situation.

The closure affects one of Germany's busiest highway sections, potentially causing significant traffic disruptions, especially as summer vacation travel picks up.

Authorities have advised drivers to take alternative routes, with the ADAC warning of possible massive impacts on detour routes if the closure persists.

While initial health concerns have been addressed, officials are still determining how to safely remove the remaining gas from the tanker.