A JetBlue pilot had to take “evasive action” while landing at Boston’s Logan International Airport when another aircraft crossed an intersecting runway, the Federal Aviation Administration said. Despite the spate of recent “near misses” data from the US Federal Aviation Administration shows the number of the most serious close calls at US airports has actually been decreasing even as overall incidents have risen.

The latest “close call” occurred at about 7 p.m. Monday when the pilot of a Learjet 60 took off without clearance as a JetBlue flight was preparing to land on an intersecting runway, according to the FAA’s preliminary review.

An air traffic controller instructed the pilot of the Learjet to line up and wait on one runway while the JetBlue flight landed on another runway, the FAA said in a statement.

“The Learjet pilot read back the instructions clearly but began a takeoff roll instead,” the FAA said. “The pilot of the JetBlue aircraft took evasive action and initiated a climb-out as the Learjet crossed the intersection.”

The investigation will determine just how close the two aircraft came. The FAA did not disclose any additional information. JetBlue said it is cooperating with investigators.

A Logan spokesperson deferred questions to the FAA.

Elsewhere, in a Jan. 13 close call at New York City’s John F. Kennedy International Airport, an American Airlines flight crossed a runway without clearance from air traffic control, causing a Delta Air Lines plane to abort its takeoff from that runway, government officials said. The planes came within 1,400 feet of each other, according to a preliminary report from the National Transportation Safety Board

In Austin, Texas, last month a Southwest Airlines jet and a cargo plane narrowly avoided a runway collision. A FedEx plane landing had to abruptly change course after the Southwest flight was wrongly cleared to take off .

The FAA is also probing an incident at Newark Liberty International Airport a day earlier where two United Airlines jets clipped wings, causing damage to one.

Last year, there were at least 1,633 runway incursions at US airports – which the agency defines as any occurrence at an airport in which an aircraft, vehicle or person is incorrectly on the protected areas designated for landing and takeoff.

The number of runway incursions in 2022, including general aviation and commercial aircraft, is up from the 1,397 incursions reported a decade prior, in 2012, and the 987 reported in 2002.