TOKYO, Dec 12 (Reuters) - The dollar edged down towards a 13-year low against the yen, U.S. equities futures tumbled and U.S. Treasuries extended their gains on Friday after U.S. Senate negotiators failed to reach a compromise deal to bail out U.S. automakers.
The dollar fell to 91.08 yen on trading platform EBS, the lowest in seven weeks and near a 13-year low of 90.87 yen hit in late October.
U.S. S&P 500 futures were down 3.7 percent and ten-year Treasuries extended gains and were up 12/32 in price on the day for a yield of 2.57 percent. (Reporting by Masayuki Kitano; Editing by Rodney Joyce)