“Four [suspects] have been detained in the capital, Tunis, three of them are suspected of being members of a group that provided the militants who took hostages in the museum with logistical support,” the source added.
The source also said that five of the detained are suspected of being directly involved in the attack.
On Wednesday, two gunmen disguised as military attacked the Bardo museum in Tunis taking dozens of tourists hostage. More than 20 tourists from Italy, France, Spain, Poland, the United Kingdom, Australia, Japan and Columbia were killed in the attack. Some 40 people including a Russian national, were injured. The captives were freed later on Wednesday in a special operation that left a Tunisian serviceman and both attackers dead.