Washington, DC (CNN) Amazon packages will take their last US flight on FedEx planes later this month.

FedEx FDX announced Friday that it isn't renewing its US contract with Amazon to transport packages on FedEx Express. The move comes as FedEx and Amazon compete more directly in delivery logistics

Amazon is under increased pressure to deliver packages quickly. In April, Amazon said it planned to begin delivering packages to Prime customers in one day rather than two. FedEx followed up in May with plans to deliver seven days a week

FedEx said in a press release it plans to focus on serving the broader e-commerce market with continued partnerships with brands such as Walmart and Target. The company said Amazon accounted for less than 1.3% of its total revenue in 2018.

Amazon AMZN A FedEx spokeswoman told CNN Business the decision impacts only air transportation. Other contracts between FedEx andremain intact.

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