PARIS, Oct 16 (Reuters) - Dubai's Emirates, one of the

world's largest cargo carriers, is expanding its fleet of Boeing

777F freighters as it plans for sharp growth in cargo traffic,

industry sources said.

The order for more of the current-generation freighters

emerged amid tensions between Emirates and Boeing ( BA ) over separate

delays but pre-dated Boeing's ( BA ) announcement on Friday that its

future 777X jetliner series would slip by another year to 2026.

In September, Boeing ( BA ) reported orders from unnamed buyers for

11 777F freighters, but did not supply details. The sources said

part of the total included a fresh order for the 777F from

Emirates. The airline and Boeing ( BA ) both declined comment.