WASHINGTON (AP) _ All U.S. government workers in Turkey have been accounted for following a disastrous earthquake, Energy Secretary Bill Richardson said today.

``We have no reports yet of any injured Americans but there are a lot of American tourists here,'' Richardson said in a telephone interview with ABC's ``Good Morning America'' from Istanbul, where he is traveling. ``So far they appear to be safe.''

Hundreds were killed and thousands were injured in the earthquake, which struck at 3 a.m. local time (8 p.m. EDT Monday).

The U.S. government has offered to help, Richardson said. ``We have an emergency response team at the U.S. Embassy working closely with the Turkish government.'' He arranged to meet later in the day with the Turkish energy secretary ``to see how we can help.''

``It was pretty terrifying,'' Richardson told NBC's ``Today.'' He was sleeping on the 12th floor of a 13-floor building and ``for 45 seconds we were rocked back and forth.''