Washington (CNN) U.S. leaders at home and abroad are taking steps to increase security and surveillance ahead of the July 4 holiday, following a warning from security officials that such gatherings could be targets of a terror threat.

New York Gov. Andrew Cuomo is following fellow state and city executives Friday in announcing increased security efforts in his state. Cuomo said he directed the Division of Homeland Security and Emergency Services Office of Emergency Management to enhance monitoring of celebrations and events on July 4.

"We are keenly aware that New York State remains a top target for terrorists," the governor said. "As we celebrate with family and friends this Independence Day, I urge all New Yorkers to not only remember the freedoms that we hold dear, but also remain cautious of their surroundings and learn to recognize and report suspicious activity."

In the release, Cuomo said New York state will increase monitoring and communication with local, state and federal emergency management and law enforcement partners in response to a federal government warning.

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