The Corinth-Tripoli national highway in the Peloponnese will be completely closed off to traffic from 9 p.m. on Tuesday night to 6 a.m. the following day as an emergency drill is carried out at the Artemisio Tunnel.

The drill will close off the entire section of the highway from the Sterna interchange to the off-ramp for North Tripoli.

Traffic between Corinth and Tripoli will be diverted onto the old national road, meaning that commuters should expect delays.