Police stand guard at Central railway station in Oslo

Police stand guard at Central railway station in Oslo July 25, 2014. A group of militant Islamists planning to carry out attacks in the West is on its way from Syria, possibly heading towards Norway, police said on Friday. Norwegian armed police were deployed for a second day at high-risk locations including airports and train stations, after the police’s intelligence unit said on Thursday it received credible information that an attack might take place in the country in coming days. REUTERS/Heiko Junge/NTB Scanpix (NORWAY – Tags: CRIME LAW CIVIL UNREST) ATTENTION EDITORS – NORWAY OUT. NO COMMERCIAL OR EDITORIAL SALES IN NORWAY. THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS. NO COMMERCIAL SALES