Nassau County police said they are intensifying patrol efforts and monitoring social media after separate shootings Sunday killed one police officer in Texas and wounded two others in Missouri and another in Florida.

Nassau police said in a statement there “will be intensified patrols in areas of public gatherings and near critical infrastructure.

“Social media outlets will be monitored and we request the public’s assistance in any way possible to stop threats to public safety.”

Nassau police said they were working with federal and local authorities to assess national and local threat levels.

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The department also expressed its sympathies to the family and friends of Benjamin Marconi, 50, who was writing a traffic ticket when he was shot to death in his squad car late Sunday morning outside police headquarters in San Antonio, Texas.

Authorities called the shooting another example in a series of targeted attacks on law enforcement.

Suffolk County Police Commissioner Timothy Sini extended San Antonio police “our deepest condolences,” and said “we also pray for the swift recovery” of the wounded officers.

“We stand with our brothers and sisters in law enforcement throughout the nation in condemning these horrific acts,” Sini said in a statement. “It takes an incredibly depraved individual to carry out a cowardly, deplorable attack on the very people who unselfishly choose a career to keep us safe. I pray for the safety of our brave, hard-working officers here in Suffolk County and all law enforcement officers across the country.”

The statement from Nassau County Executive Edward Mangano and acting Police Commissioner Thomas Krumpter also wished speedy recoveries to three other officers shot and wounded in similar ambush-style attacks in Missouri and Florida.