'Mortars' caused explosion at Istanbul airport

Turkish prosecutor says four mortar rounds fired from outside Sabiha Gokcen Airport killed 30-year-old cleaner in December

'Mortars' caused explosion at Istanbul airport

Mortar rounds caused last month's fatal explosion at Istanbul’s Sabiha Gokcen Airport, an investigation has revealed.

Istanbul's Anatolia Chief Public Prosecutor’s Office said on Thursday that four mortar rounds were fired on Dec. 23 from a forested area around two kilometers [1.2 miles] from the province’s Asian-side airport at 02.15 a.m. local time [1215 GMT].

Thirty-year-old airport cleaner Zehra Yamac died when she suffered a fatal head injury in the blast.

Her colleague, Canan Celik, 33, survived with a hand injury.

It remains unclear who carried out the attack or if the assailants have any connection to a terror organization.