php56-php-gd failed when trying to install WP via script installer

Fails with following. I even installed rh-php56-php-gd manually and same result. Please advise. Thanks!

PHP module gd is required .. Installing package php56-php-gd .. Installing package(s) with command /bin/yum -y install php56-php-gd .. Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirror.teklinks.com * epel: mirror.umd.edu * extras: ftpmirror.your.org * updates: mirrors.advancedhosters.com No package php56-php-gd available. Error: Nothing to do .. install failed! Installing package php56-gd .. Installing package(s) with command /bin/yum -y install php56-gd ..

Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirror.teklinks.com * epel: mirror.umd.edu * extras: ftpmirror.your.org * updates: mirrors.advancedhosters.com No package php56-gd available. Error: Nothing to do .. install failed! Module is not available even after installation!