WASHINGTON, July 15 (Xinhua) -- Pittsburgh, Pennsylvania, is enhancing police training to provide security at the upcoming Group of 20 economic summit to be held in the U.S. city in September, officials said.

    Most of the city's police officers are attending a special training course taught by instructors from the Center for Domestic Preparedness (CDP), a division of the Federal Emergency Management Agency, Pittsburgh police officials were quoted by Wednesday's Pittsburgh Post-Gazette as saying.

    Details of the course is not revealed, but the CDP is known for training law enforcement personnel for crowd control and unlawful protest.

    Some Pittsburgh police officers recently received training from the Combined Tactical Systems, a private company which specializes in crowd-control equipment.

    Pittsburgh city officials hope to have as many as 4,000 police officers on hand for the summit, and the event's total safety price tag could fall between 10 million and 20 million U.S. dollars.

    Pittsburgh Police Department has nearly 900 officers, extra officers will be provided by county and state police and possibly police forces from neighboring states.

    The White House announced in May that the United States will host the next Group of 20 economic summit on Sept. 24-25 in Pittsburgh, Pennsylvania.

    The G20 includes the Group of Eight richest countries -- the United States, Germany, Japan, France, Italy, Britain, Canada and Russia.

    Other members are the European Union, Argentine, Australia, Brazil, China, India, Indonesia, Mexico, Saudi Arabia, South Africa, South Korea and Turkey.

    Top officials from the United Nations, the World Bank and the International Monetary Fund will also be present at the meeting.