Despite doubts, Keller sent the rest of the 3rd RTR to follow the light tanks from Coquelles towards St. Omer at 2:15 p.m. When about 1.0 miles south-east of Hames-Bources, the rearguard tanks and anti-tank guns of the 1st Panzer Division were spotted on the Pihen-les-Guînes road (guarding the rear of the division as the main body moved north-east towards Gravelines).