Thieves have targeted freight trains running through California and Arizona in a string of audacious heists that have resulted in the theft of more than $2 million worth of new Nike sneakers.

Thieves are targeting freight trains running through the deserts of California and Arizona in a string of heists resulting in the theft of more than $2 million worth of new Nike sneakers, including many that haven’t hit the retail market yet,

In one heist, they made off with 2,000 pairs of Nikes, including Air Jordan 4s that will not be released to the public until next month.

A string of heists targeting BNSF trains in California and Arizona resulted in the theft of $2 million worth of Nike sneakers. Trade groups say these types of crimes are happening more frequently.

Sneakers continue to be a huge target for criminals, and according to new reports from the LA Times, nearly $2 million worth of Nike footwear has been stolen from freight trains in California and Arizona within the last year-including pairs of the much-anticipated Nigel Sylvester x Air Jordan 4 collab.