The reward amount for tips that lead to the arrest of suspects who assaulted a California man has been increased by thousands of dollars.

Mark Calub was one of three men viciously attacked on Edgewood Avenue in Atlanta on April 22.

Crime Stoppers, along with Calub's friends and family, have increased the reward to $5,000. Calub is still in critical condition, according to Crime Stoppers Greater Atlanta's Facebook page.

An earlier reward offer was $2,000.

Facebook page and donation website have also been created for Calub.

Anyone who recognizes the suspects or has information for police is asked to contact Crime Stoppers Atlanta at 404-577-8477, text information to 274637 or visit crimestoppersatlanta.org. Tipsters can remain anonymous.

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It happened in a popular area in Edgewood.