One man was killed after gunmen opened fire inside a Catholic church in Istanbul during Sunday mass in what appeared to be a targeted attack. The shooting, condemned by Pope Francis and Turkish officials, was claimed by the so-called Islamic State group in a statement issued on its Telegram channels. Two masked men carried out the attack at around 11:40 am (0840 GMT) at the Santa Maria church in the Sariyer district, on the European side of Turkey’s largest city, Interior Minister Ali Yerlikaya said on social media. Turkish officials said it looked like a targeted attack against one person rat…