FedEx Corp said an "operational error" caused a Huawei Technologies Co Ltd phone to not be delivered to the United States and the package delivery company apologised for the error, the Global Times reported on Sunday.

"FedEx can accept and transport all Huawei products except for any shipments addressed to listed Huawei entities on the US Entity List," FedEx said in a statement cited by the newspaper.

Global Times is a tabloid published by the ruling Communist Party's People's Daily.

China launched an investigation into FedEx Corp earlier this month over parcels delivered to the wrong address, without giving details about the deliveries in question.

China's state news agency Xinhua had said back then that the investigation into FedEx over misdirected mail should not be regarded as retaliation against the US company, amid worsening trade relations between China and the United States.

The United States and China have been engaged in a trade dispute for months on issues such as tariffs, subsidies, technology, regulations and cybersecurity, among others, with Washington putting Huawei on a blacklist last month citing national security.

FedEx did not respond immediately to a Reuters request for comment early on Sunday.