``(Sunday) we implemented the appropriate steps to protect Maryland citizens in response to this latest intelligence information,'' Ehrlich said in a statement.
Ehrlich on Sunday directed the Maryland State Police to review security strategies with federal and local law enforcement agencies and the state's financial services industry.
Department of Homeland Security Secretary Tom Ridge announced Sunday that the agency had received information of terrorists targeting financial institutions in Washington D.C., New York City and northern New Jersey.
The governor's office declined to specify operations of various law enforcement agencies, including Maryland Transportation Authority Police, State Fire Marshal's Office, Natural Resources Police and Department of General Services Police.
On Friday, a group of Maryland security officials returned from a week-long tour of Israel with new ideas on how to protect airports, ports, building and other installations under constant threat of terrorism.
The attendees included Dennis Schrader, the state's homeland security director; Assistant Transportation Secretary James Ports; transit administration Police Chief Douglas DeLeaver and Charles County Sheriff Fred Davis were among the attendees.
Schrader said state officials would remain in contact with the federal homeland security office. He did not say if some of the Israeli techniques would be seen here.
Maryland Army National Guard spokesman Maj. Charles Kohler said Monday that units were taking precautions, but had not been placed on any standby notice. After the September 2001 terrorist attacks, military police units from the Guard secured the perimeter of the Pentagon.
In Washington, D.C., Metropolitan Police Department Chief Charles H. Ramsey said officers on overtime detail would increase patrols and the department will boost the number of checks of vehicles on city roadways.
``We have no plans at this time to totally shut down the area around the World Bank and IMF,'' Ramsey said. ``But we will be greatly enhancing our presence along with the private security that's already there.''