The British Museum has asked the public for assistance in identifying and recovering ancient artifacts that have vanished from its collection.

A member of staff was fired last month, and police initiated an inquiry after 2,000 items were reported “missing, stolen, or damaged” over a “significant” period of time.

The museum has now stated that the majority are Greek and Roman gems and jewelry, and has given images of comparable objects.

Sixty items were returned.

The museum said that 300 more have been “identified and [are] due to be returned imminently” in a statement.

In an attempt to recover the rest, it has put details and images of the types of objects that are missing on its website.

“If you are concerned that you may be, or have been, in possession of items from the British Museum, or if you have any other information that may help us, please contact us,” the website said.