State transportation officials have removed 26 loose wall panels from inside the Sumner Tunnel in Boston, a week after 117 panels were removed from the adjacent Callahan Tunnel because one had fallen onto the road.

The state Transportation Department closed the Sumner on Sunday and conducted "pull tests" on all 2,400 of the metal panels during an inspection that lasted into Monday morning.

A department spokeswoman says if a panel moved even slightly, it was removed. The roughly 100-pound panels were removed because the brackets fastening them to the wall had corroded.

The panels will be replaced in the coming weeks.

Workers pulled 117 of the Callahan's 2,800 panels the previous weekend, after one 4-foot-by-9-foot panel fell on the roadway Dec. 21. No cars were hit and no one was hurt.