U.S. stock index futures pointed to a weaker open on Wall Street Thursday after President Barack Obama announced new plans to fight Islamic State militants and jobless claims for the week came in higher than expected.

Initial claims for state unemployment benefits increased 11,000 to a seasonally adjusted 315,000 for the week ended September 6, the highest level since June, the Labor Department said on Thursday. However, claims remained near pre-recession levels and did not indicate a significant change in labor market conditions.