President Joe Biden warned the Americans, especially those who are still unvaccinated, about the dangers of the Delta COVID variant.

The chief executive issued the warning at a community center in Raleigh, North Carolina, CNBC reported. 

Joe Biden's warning happened on Thursday, June 24, as he also reported that the surge in COVID-related deaths in the U.S. would continue due to the Delta variant. Because of this, Joe Biden labeled the strain of SARS-CoV-2 as a "serious concern."

"The data couldn't be clearer: If you're vaccinated, you're safe," said the president as he emphasized the importance of getting vaccinated. 

Joe Biden said that unvaccinated individuals are "at risk of getting seriously ill or dying." The president also emphasized the importance of young Americans getting immunized against the disease.

"Six hundred thousand-plus Americans have died and with this Delta you know there's going to be others as well," said Biden.

White House chief medical advisor, Dr. Anthony Fauci, confirmed on Wednesday, June 23, that the Delta COVID variant now accounts for at least 20 percent of all new COVID cases in the U.S.

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Joe Biden: COVID Killed More Americans Than War in Iran

As the president speaks in North Carolina, he warned the unvaccinated Americans about the Delta COVID variant. New York Post reported that Joe Biden said COVID claimed more American lives than all wars of the past century combined, including the U.S. war on Iran, which never happened.

The president noted that about 600,000 deaths were recorded in the U.S. in about a year.

"That's more than every life lost in World War I, World War II, the Vietnam War, Iraq, Iran, across the board - Afghanistan," said Biden in North Carolina.

Apart from stating the casualties, Joe Biden also discussed why racial and ethnic groups were hesitant to take the COVID vaccines. 

The president said the African Americans do not want the vaccine because "they used to be experimented on." Joe Biden also noted that Latino communities are against the vaccine because they fear being deported.

Despite the hesitancy, the president still emphasized the importance of getting vaccinated amid the presence of the Delta COVID variant.

WHO Warns Against Delta COVID Variant

Aside from president Joe Biden, the World Health Organization (WHO) also warned public health officials and world leaders about the emergence of the Delta COVID variant. 

Just like Joe Biden, the organization also promoted COVID vaccination to prevent the spread of the Delta strain, which was reported to be more transmissible and contagious against the Alpha variant.

WHO noted that the Delta COVID variant was reported to have more "severe" symptoms. However, they also said that more research was needed to support these claims.

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WATCH: Growing Concern Over Covid Delta Variant - From NBC News