State Department spokesman P.J. Crowley said Egyptian Vice President Omar Suleiman's meetings with opposition figures so far "are not broad enough, not credible enough."
Crowley said the U.S. wanted Egypt's government to do more. And he urged the opposition to participate in dialogue.
He also said there were strong indications that attacks on journalists in Cairo were part of a concerted effort to stifle reporting on the crisis. He didn't blame Mubarak or the government, though.
Crowley said President Barack Obama's envoy to Egypt, Frank Wisner, briefed Secretary of State Hillary Rodham Clinton on the situation in Egypt earlier Thursday.
Crowley said Clinton spoke Thursday with Jordan's King Abdullah II.