Istanbul police launched scores of simultaneous raids on Thursday, detaining over a hundred suspected members of the militant Islamic State group who were allegedly planning attacks against Christmas and New Year's celebrations, authorities said. A statement from the Istanbul Chief Public Prosecutor's Office said police were tipped off that the extremist group had called for action -- particularly against non-Muslims -- during the celebrations. The office had issued warrants for 137 suspects, of whom 115 were detained. Officers also seized many firearms, cartridges and documents during the raids. It said 124 locations were raided. The arrests come days after the Trump administration launched widespread military strikes in neighbouring Syria to "eliminate" Islamic State fighters and weapons' sites in retaliation for an ambush blamed on the group that killed two US troops and an American civilian interpreter. Syrian security forces have also launched operations against IS in recent .