The euro extended gains versus the dollar on Thursday, hitting session highs, after European Central Bank President Jean Claude Trichet said some governors at the bank would have supported a rate increase.

The ECB left benchmark rates steady at 4 percent at its policy meeting earlier.

The euro last traded 0.2 percent higher at $1.4627, after touching a session high of $1.4636.

(Editing by Theodore d'Afflisio)