Another controversy is brewing for Starbucks as the coffee giant apologized to two deputies in California after they claimed employees at the retailer refused to serve them on Thursday night.

The incident happened at Starbucks in Riverside County near University of California, Riverside when employees allegedly ignored the uniformed deputies for around five minutes and did not offer to serve them.

The deputies eventually decided to leave, according to statements from a Starbucks spokesperson and Riverside County Sheriff Chad Bianco on Twitter.

Starbucks has apologized to deputies at the Riverside County Sheriff's Department after they say employees ignored them

In response to the allegations, Starbucks apologized to the deputies and the department for the lack of service.

Sheriff Chad Bianco (pictured) said the 'anti-police culture' at Starbucks must end in a message on Twitter

'There is simply no excuse for how two Riverside deputies were ignored for nearly 5 minutes at our store on Thursday evening. We are deeply sorry and reached out to apologize directly to them,' the statement read, according to KTLA 5.

'We take full responsibility for any intentional or unintentional disrespect shown to law enforcement on whom we depend every day to keep our stores and communities safe.'

The spokesperson revealed that the employees in question will not be scheduled to work while the company investigates the incident and takes the 'appropriate' next steps.

Bianco took to Twitter on Friday to admonish the treatment of the deputies and called for the 'anti-police culture' at Starbucks to cease.

'Two of our deputies were refused service at Starbucks. The anti police culture repeatedly displayed by Starbucks employees must end,' he said.

The official Riverside County Sheriff's Department's Twitter also addressed the situation, saying they are aware of 'cop with no coffee incident'.

Bianco addressed the alleged incident to social media users on Friday and called out Starbucks' company culture

The official Riverside County Sheriff's Department also acknowledged the incident, saying they are aware of the 'cop with no coffee'

'We are in communication w/ [Starbucks] Corporate addressing the issue of deputies being denied service,' they wrote.

After his initial post, Bianco engaged with Twitter users about the apparent snub in several tweets.

While some users called boycott Starbucks, others questioned the validity of the situation.

One person said: 'Time to Boycott Starbucks and back our brothers and sisters in tan green.'

A man suggested that Starbucks fix their company culture in light of several anti-law enforcement incidents at company stores.

Some Twitter users said they would boycott Starbucks after the apparent mistreatment off police officers across the country

This user called for Starbucks to change their 'corporate culture' at all locations or suffer financially

'If it were just one incident I would be willing to believe that it was not the corporate culture. [Starbucks] needs to send a strong message to ALL their locations or suffer the financial consequences.'

The more skeptical users were quick to point out that five minutes is a relatively short time and wondered if they were receiving the entire story.

'As a law enforcement officer, you should get all the facts before making a rush to judgement. Wait for the entire story,' one man said.

Another man said: 'Heard they had to wait five whole minutes. What is this country coming to.'

One man said: 'As a law enforcement officer, you should get all the facts before making a rush to judgement. Wait for the entire story'

Bianco responded to a Twitter user who mocked the deputies for having to wait five minutes for service

Bianco acknowledged the man's sarcastic comment, saying: 'By minimizing a 5 min wait the fact they were purposely refused because they were in uniform can be ignored.'

He revealed through a series of replies that the deputies were ignored despite asking employees for help multiple times and that the moment was caught on surveillance camera.

Bianco said if the employees were able to prove it was an honest mistake, they would have done so already but 'they immediately downplayed it.'

The deputies were allegedly standing in front of the register with no other customers asking for assistance.

When one user questioned if the department's outrage stemmed from bad customer service or entitlement, Bianco said it was neither.

Bianco: 'Neither. They were not served because they were in uniform. Plain and simple'

'Neither,' he said, 'They were not served because they were in uniform. Plain and simple.'

This incident marks the third time Starbucks has been accused of mistreating police officers since July.

The first incident happened when six officers in Tempe, Arizona, claimed a barista asked them to move away from a customer who complained that their presence made him nervous.

In November, a Chief Johnny O'Mara of Oklahoma shared a photo of a his coffee order after an employee labeled the cup for multiple officers with the word 'PIG'.

In both instance Starbucks apologized and the employee involved in the Oklahoma controversy was fired.