Two officers were treated for skin irritation in Cleveland's downtown Public Square on Thursday during protests surrounding the Republican National Convention, police said.

A Georgia state trooper was treated at the scene and released after coming into contact with a sticker during the protests, according to authorities.

And a Cleveland police officer was treated for skin irritation after reporting a numbness and burning in his neck that did not involve a sticker, Cleveland police spokeswoman Sgt. Jennifer Ciaccia said.

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A Cleveland police officer speaks with a protester on Cleveland Public Square on the final day of the Republican National Convention on Thursday in Cleveland, Ohio. As the four-day Republican convention drew to a close on Thursday night, there were only a total two dozen protest-related arrests

Two men with opposing world views have a stand off in a public square not far from Quicken Loans Arena, site of the Republican National Convention

Police officers on bikes were seen arriving at the scene of the protest on Thursday

Brandon Bacon, 26, stands with a sign as police officers stand guard inside the Public Square outside the site of the Republican National Convention in Cleveland on Thursday

Protesters had reportedly been placing yellow stickers on law enforcement officials that read, 'I am awesome,' according to WOIO.

The stickers were sent to Columbus for further testing and a person was questioned by the FBI, the station reported.

Ciaccia said officers were investigating the incident and urged people not to take stickers from people they do not know.

Authorities also advised those who had received a sticker from a stranger to remove it and wash the area with soap.

In addition, police placed syringes on a list of items banned in the protest zone created for the convention after unconfirmed reports of officers being injured with syringes.

As the four-day Republican convention drew to a close on Thursday night, there were only a total two dozen protest-related arrests.

That comes as a relief to city officials and police who had braced for mass disruptions and violence during this summer of bloodshed.

In the run-up to the convention in Cleveland, some law enforcement officials had feared hundreds of arrests every day.

The demonstrations that many thought would end in pitched battles between police and protesters turned at times into carnival-like scenes, with bongo players and with protesters dressed as nuns on stilts.

Late Thursday night, police put the number of arrests since Monday at 24, with 18 of those from a melee that erupted during a flag-burning by avowed revolutionaries.

Hundreds of the demonstrators that had gathered in Cleveland's Public Square on Thursday eventually scattered before the Trump's prime-time acceptance speech.

Shouting matches and scuffles among the groups came to a halt after protesters were outnumbered by hundreds of police officers who streamed into the square.

Groups included anarchists, anti-Muslim protesters and Bikers for Trump.

A supporter of Republican presidential nominee Donald Trump (left) argues with a man opposed to Trump (right) in the Public Square before the start of the final day of the Republican National Convention

Protesters from the Revolutionary Communist Party march around the downtown area during the last night of the 2016 Republican National Convention in Cleveland

Protesters from 'Stand Together Against Trump' make their voices heard at the public square on Thursday

Hundreds of the demonstrators that had gathered in Cleveland's Public Square on Thursday eventually scattered before Trump's prime-time acceptance speech

At one point, police formed a barricade using their bikes between different groups.

Gone were protesters yelling into bullhorns and a stage set up for demonstrators was empty for the first time all week.

Authorities also said on Thursday that most of the people arrested during a flag-burning protest on Wednesday have been charged with misdemeanor counts of disorderly conduct or obstruction of business.

They said most are free on personal recognizance bonds with some accused of flag burning still not charged while prosecutors review charges.

However, the Ohio chapter of the American Civil Liberties Union criticized a delay in a hearing for those arrested following the flag-burning protest.

The ACLU said there was no reason for the 18 people to be held for so long on minor charges.

Lawyers representing those arrested during the Wednesday afternoon protest near the arena said a 4pm Thursday hearing was delayed because the court still had not received charging documents.

A supporter of Republican presidential candidate Donald Trump stands among anti-Trump protesters at the Public Square on Thursday

A man holds a sign that reads 'socialism sucks' during protests on Thursday

Shouting matches and scuffles among the groups came to a halt after protesters were outnumbered by hundreds of police officers who streamed into the square

A group of law enforcement officers are seen gathering in Public Square on Thursday

Lawyers with the Ohio Chapter of the National Lawyers Guild and the Cleveland Branch of the NAACP said those under arrest should be charged or immediately released.

A message was left with Cleveland city officials seeking comment.

Earlier Thursday, Members of the Revolutionary Communist Party said no one was on fire as police had claimed when they moved in to make arrests during the flag-burning protest.

Police at the time said officers had moved in because a member's pants had caught on fire.

However, a supporter of the Revolutionary Party said at a news conference on Thursday morning that police 'lied' about people being on fire.

Late Thursday night, police put the number of arrests since Monday at 24, with 18 of those from a melee that erupted during a flag-burning by avowed revolutionaries

A Georgia state trooper stands armed in Cleveland Public Square on the final day of the Republican National Convention

A Trump supporter is pictured taking a selfie while surrounded by state troopers

In the run-up to the convention in Cleveland, some law enforcement officials had feared hundreds of arrests every day

Sunsara Taylor said members are being illegally detained to prevent them from protesting.

On Thursday afternoon, an anti-Trump march took place with the event starting at Hope Memorial Bridge.

Dozens of people chanted 'Love Trumps Hate' and carried signs that said 'Ban All Trumps Not Muslims.'