An investigation into the theft of several ancient statues dating back to the Roman era from Syria’s national museum is ongoing and results are expected in the coming few days, officials said Wednesday.

The National Museum of Damascus had reopened in January as the country was recovering from a 14-year civil war and the fall of the 54-year Assad family rule last year.

It closed again on Monday after the heist was discovered.

On Wednesday, a security vehicle was parked outside the main gate of the museum in central Damascus while security guards stood nearby.

People were not being allowed in because of the ongoing investigation, although authorities said in a statement that it had reopened.

Two officials from Syria’s Directorate-General for Antiquities and Museums said progress has been made.

They spoke on condition of anonymity because they were not allowed to speak about the details of the investigation to the media.

One of the officials said investigators believe the theft was likely the work of an individual and not an organized gang.

The country’s largest museum houses priceless antiquities.

After the civil war started in March 2011, security was improved with metal gates and surveillance cameras, and authorities moved hundreds of artifacts to Damascus from around the country.

The theft angered Damascus residents who said that such acts tarnish the image of the country as it tries to get out of the conflict that left half a million people dead.

On Tuesday the Directorate-General for Antiquities and Museums said in a statement that the theft did not affect activities at the museum claiming that visitors were visiting the facility as usual.

An AP journalist who tried to enter the museum on Wednesday was told that all sections, including those that are outdoor, are closed because of the investigation.

The museum reopened on Jan. 8, a month after rebels ousted President Bashar Assad, ushering in a new era for the country.

Fearful of looting, the museum had briefly closed after a rebel offensive ended five decades of Assad family rule.

The years of conflict had badly affected areas including the historic central town of Palmyra, once held by the Islamic State group.

In 2015, IS members destroyed mausoleums in Palmyra’s UNESCO World Heritage site that is famous for its 2,000-year-old Roman colonnades, other ruins and priceless artifacts.