A man arrived at the Royal with a baseball bat in dramatic scenes at the hospital last night.
Police were called to the site at 8.10pm following reports of a bat-wielding man on the premises.
The incident led to a large police presence at the Royal as officers dealt with the situation.
A 27-year-old man was arrested on suspicion of affray and possession of an offensive weapon in a public place.
A second man was also detained in connection with the same incident, which Merseyside Police is treating as "domestic" related.
The 28-year-old, who is from Walton , was arrested on suspicion of malicious communications and racially/religiously aggravated harassment.
Both men were taken in custody for questioning.
*Anyone with details about the incident can contact Merseyside Police via Twitter (@MerPolCC) or by calling 101. Crimestoppers can be contacted, anonymously, on 0800 555 111.
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