People pray at the entrance gate of the Bardo Museum in Tunis, Tunisia, on Wednesday, March 18. Earlier in the day, at least 23 people were killed -- most of them tourists -- when gunmen opened fire in the museum.
People pray at the entrance gate of the Bardo Museum in Tunis, Tunisia, on Wednesday, March 18. Earlier in the day, at least 23 people were killed -- most of them tourists -- when gunmen opened fire in the museum.
Michel Euler/AP
A person is taken away on a stretcher outside the museum.
A person is taken away on a stretcher outside the museum.
Hassene Dridi/AP
Bullet holes are seen in a bus window near the museum.
Bullet holes are seen in a bus window near the museum.
Ahmet Izgi/Anadolu Agency/Getty Images
A helicopter flies around the museum, which is housed in a 19th-century palace and describes itself as "a jewel of Tunisian heritage." Its exhibits showcase Tunisian art, culture and history.
A helicopter flies around the museum, which is housed in a 19th-century palace and describes itself as "a jewel of Tunisian heritage." Its exhibits showcase Tunisian art, culture and history.
Yassine Gaidi/Anadolu Agency/Getty Images
Tourists are moved away from the scene of the shooting.
Tourists are moved away from the scene of the shooting.
Ahmet Izgi/Anadolu Agency/Getty Images
Tunisian President Beji Caid Essebsi leaves a Tunis hospital after visiting those injured in the attack.
Tunisian President Beji Caid Essebsi leaves a Tunis hospital after visiting those injured in the attack.
Amine Landoulsi/Anadolu Agency/Getty Images
Security forces patrol around the museum.
Security forces patrol around the museum.
Ahmet Izgi/Anadolu Agency/Getty Images
The museum is evacuated by authorities. There was a significant number of foreign tourists at the museum at the time of the attack -- something that's not surprising, given its prominence in Tunisia and the fact that at least two cruise ships were docked in Tunis.
The museum is evacuated by authorities. There was a significant number of foreign tourists at the museum at the time of the attack -- something that's not surprising, given its prominence in Tunisia and the fact that at least two cruise ships were docked in Tunis.
Hassene Dridi/AP
A security officer holds his position near the museum.
A security officer holds his position near the museum.
FETHI BELAID/AFP/Getty Images
Security forces secure the area around museum.
Security forces secure the area around museum.
FETHI BELAID/AFP/Getty Images
Police arrest a man they believed to be suspicious.
Police arrest a man they believed to be suspicious.
Yassine Gaidi /Anadolu Agency/Getty Images
Police in plainclothes stop a vehicle as they secure the area around the museum.
Police in plainclothes stop a vehicle as they secure the area around the museum.
FETHI BELAID/AFP/Getty Images
Tunisian security forces secure the area around the museum.
Tunisian security forces secure the area around the museum.
FETHI BELAID/AFP/Getty Images
Security forces take up position outside the museum.
Security forces take up position outside the museum.
MOHAMED MESSARA/EPA
Police take up position behind a car near the museum.
Police take up position behind a car near the museum.
MOHAMED MESSARA/EPA