Norway is temporarily introducing border checks, police said on Saturday, after a decision by security services to raise the terror alert level. The measure gives the police more options to secure the borders, the National Police Directorate said in a statement. The Norwegian Police Security Service (PST) raised the national terror threat level from moderate to high on Tuesday, citing the escalating conflict in the Middle East. There are concerns about increased danger to Israeli and Jewish institutions in the country. Norway is now at the second-highest terror alert level. The new border regu…