Via AP this morning:

A flight from Los Angeles to London was diverted to Boston early Tuesday because three Pakistani passengers were acting suspiciously, but nothing amiss was found and the three were released after questioning, authorities said.

United Airlines Flight 934 landed in Boston shortly before 3 a.m., Logan Airport spokesman Phil Orlandella said. Three people he described as Pakistani citizens were taken into custody and questioned.

All three were later released and no charges were filed, said Gail Marcinkiewicz, a spokeswoman for the FBI in Boston.

“The flight crew made an observation of their behavior which caused the flight to be diverted to Boston,” she said. “It’s all being resolved. They will be on another flight this morning for Heathrow.”

I can hear the stampede of ACLU lawyers already.