Eleven suspected illegal immigrants arrested at Pinchbeck on Monday are facing questions in a Home Office immigration detention centre.
The men come from Syria, Pakistan and Morocco and are likely to be deported.
They were arrested at Pinchbeck firm DP Packaging, in Northgate, after being found in the back of a lorry.
Spalding police inspector Jim Tyner said police were called in at 10.50am on Monday and all 11 men were “safely contained and arrested by local community patrol officers” and there was no violence at the scene.
It’s not known how the men got into the lorry, but the driver was questioned by police.
It was the second police swoop on suspected illegal immigrants in four days.
Three men were arrested in Cowbit at 8.45am on Friday and taken to Spalding Police Station before being handed over to the Home Office Borders and Immigration Department, formerly known as the UK Border Agency.
One Pakistani was found to have the right to reside in the UK and was released, but a second Pakistani and an Afghan were transferred to immigration detention.
A Home Office spokesman said: “When suspected illegal immigrants found on lorries are arrested by police, we respond quickly.
“We work closely with police to tackle illegal immigration.
“Where someone is found to have no legal right to remain in the UK we will take action to remove them.”