India, Sept. 15 -- The major U.S. index futures are currently pointing to a slightly lower open on Tuesday, with stocks poised to add to the losses posted in the previous session.

An increase in treasury yields may weigh on Wall Street, as the yield on the benchmark ten-year note jumps back above 5 percent to its highest level since July 2007.

Concerns about the outlook for inflation and interest rates have driven yields higher ahead of the Federal Reserve's monetary policy decision on Wednesday.

The Fed is widely expected to raise interest rates, with CME Group's FedWatch Tool currently indicating a 92.5 percent chance of a quarter point rate hike.

"Market commentators have long argued that Treasuries hitting 5% is the trigger for an e...