Work on the multi-million pound renovation of Lynn’s town hall had to be halted this morning after weapons and ammunition were found on the site.
Bomb disposal experts were called to the site after the items, which are thought to date back to the First World War, were found during digging.
The discovery was made during work on the £2.7 million Stories of Lynn project, which is funded by West Norfolk Council and the Heritage Lottery Fund.
A council spokesman said: “Significant excavation works have already taken place to the rear of the town hall.
“During the final stage of the works this morning, objects believed to be ammunition were discovered. The area was cordoned off and the police were informed.”
Explosive disposal teams were called to the site to investigate the finds, which are believed to be smoke mortars and bullets.
The council spokesman added: “They have now been safely removed for disposal. The area is now back to normal.”
Building work at the town hall is expected to be completed early next month. The project is expected to open to the public in the spring.