Force browser to download image file from external server in laravel

Images in my project are from an external server; I want to download them when click on download button or tag, but open them in another page.

                @foreach($items as $item)
                <div class="col-lg-2 col-md-4 col-sm-6 nopad image-gallery">
                    <a target="_blank" class="fancybox mediaReportItem persianNum downloadImg" rel="fancybox-button"
                       downloadpath="" id=""
                       href="" title="">
                        <img src="" class="photoThumbnaill"
                             alt="" download></a>
                </div>
            @endforeach

And download not work Because image is on external server.

response()->download($file);

via Chebli Mohamed