The work on a hotel project at Galle face has been put on hold following the discovery of a ancient artillery gun at the construction site on Saturday, Archaeology Department Director General Senarath Dissanayake said . He said the work was suspended in keeping with the law on the Prevention of Destruction and Theft of Antiques. Dr. Dissanayake said his Department would dispatch its analysts and experts and a team of excavators to the site today. “We will reveal the details to determine the era to which the gun may belong,” he said.