(与XX)有关相关的新闻 ie. news which have something to do (with XX) ,(***) is omitted.
Indeed, 有关&关于 can replace each other sometimes, but not in this case. Bcoz here 有关 is a verb (have something to do with, relate to), while 关于 is a preposition (on, about, to be relative with), they're different parts of speech.
Only when 有关 is used as a prep., can it be replaced by 关于, eg. 有关/关于XX的问题 ie. the question about XX.