One person was killed when two masked gunmen opened fire during a service at Istanbul's Santa Maria Catholic church on Sunday. AFP
An ambulance leaves Istanbul's Santa Maria church as Turkish riot police block the street after two gunmen carried out a deadly shooting on Sunday. AFP
Relatives grieve after one person was shot dead during a service at Santa Maria Church in Istanbul. EPA
A Turkish forensics officer investigates near the scene of Sunday's church shooting in Istanbul. AP
Turkish police officers stand guard in a cordoned off area outside the Santa Maria church, in Istanbul, Turkey, Sunday, Jan. 28, 2024. Two masked assailants attacked a church in Istanbul during Sunday services, killing one person, Turkish officials said. (AP Photo / Emrah Gurel)
Police secure the area outside the Santa Maria Catholic church in Istanbul after an attack by two masked gunmen on Sunday. Reuters
Turkish forensic investigators conduct an investigation after a deadly shooting at Istanbul's Santa Maria Church on Sunday. EPA
One person was killed when two masked gunmen opened fire during a service at Istanbul's Santa Maria Catholic church on Sunday. AFP
An ambulance leaves Istanbul's Santa Maria church as Turkish riot police block the street after two gunmen carried out a deadly shooting on Sunday. AFP
Relatives grieve after one person was shot dead during a service at Santa Maria Church in Istanbul. EPA
A Turkish forensics officer investigates near the scene of Sunday's church shooting in Istanbul. AP
Turkish police officers stand guard in a cordoned off area outside the Santa Maria church, in Istanbul, Turkey, Sunday, Jan. 28, 2024. Two masked assailants attacked a church in Istanbul during Sunday services, killing one person, Turkish officials said. (AP Photo / Emrah Gurel)
Police secure the area outside the Santa Maria Catholic church in Istanbul after an attack by two masked gunmen on Sunday. Reuters
Turkish forensic investigators conduct an investigation after a deadly shooting at Istanbul's Santa Maria Church on Sunday. EPA
One person was killed when two masked gunmen opened fire during a service at Istanbul's Santa Maria Catholic church on Sunday. AFP