Illegal immigrants are being secretly flown to Massachusetts and kept in local lockups in an under-the-radar operation that has alarmed lawmen who are raising health and security concerns amid recent spikes in detainees coming up from Texas during the latest border crisis.

“We’re all becoming border sheriffs now with these people being carted all over the country,” said Bristol County Sheriff Thomas M. Hodgson.

“The blame goes all the way up. It’s a travesty and people ought to be upset,” Hodgson said. “This is un-American and has raised the stakes to the public health and public safety threat.”

Hodgson said buses from his facility were recently used to transport six planeloads of illegals sent up from San Antonio to Hanscom Field in Bedford en route to the Plymouth County ?Correctional Facility.

The sheriff said he’s also heard of 100 immigrant children recently arriving in his county. But he couldn’t say if they are part of the deluge of 50,000 unaccompanied kids crossing the nation’s southern border.

On the receiving end of the buses from Hodgson’s facility was Plymouth County Sheriff Joseph D. McDonald Jr., who said he’s seen a jump in illegal immigrants arriving at his jail and had to deal with “scenarios where we’ve had 100-plus detainees coming in at the same time.”

Hodgson called for sheriffs across the United States to “mobilize” on the red-hot immigration issue and confront the feds over their failure to communicate with local officials.

He said he’s heading to the Texas border Tuesday with other sheriffs from around the country to meet with ranchers and immigration officials to address the porous border crisis.

After weeks of denying an increase in flights to the Bay State, federal immigration officials finally admitted this weekend that four planes filled with detainees captured at the southern border have been flown to Hanscom and Logan International Airport since April as part of a “large-scale nationwide response” to the crisis.

Three other flights chartered by ICE since then have stopped in Massachusetts to pick up illegals and deport them, Daniel Modricker, an ICE spokesman said. A small percentage were granted asylum in Massachusetts, he added.

Modricker declined to comment on Hodgson’s report of other flights of illegals into Hanscom.

News of the covert flights comes as President Obama battles congressional Republicans over his request for nearly ?$4 billion to deal with the flood of kids as well as 30,000 illegal immigrants who crossed the border in recent weeks.

Syndicated columnist Michelle Malkin, who first reported the secret flights in June after hearing that two planeloads of detainees had quietly landed at Hanscom and Logan, said last night she wasn’t surprised when officials originally lined up to deny her story.

“This administration isn’t forthcoming about anything,” said Malkin, whose columns appear in the Herald. “This isn’t just a border crisis. It’s becoming a nationwide problem.”