Washington, May 22 (AP) The Republican National Committee's Washington headquarters was briefly evacuated on Wednesday as police investigated two vials of blood that had been addressed to former President Donald Trump following the presumptive presidential nominee's takeover of the national party apparatus.

Hazardous-materials teams were called in after the vials were discovered, according to the U.S. Capitol Police, who said they would continue to investigate. It was unclear if anyone came into contact with the blood and to whom it belonged.

Also Read | H5N1 Bird Flu: Australia Reports First Human Case of H5N1 Bird Flu in Child.

The vials were addressed to Trump, according to a person familiar with the situation but not authorized to speak about it publicly. It was unclear if any message accompanied the vials explaining why they were sent.

Spokespeople for the RNC and the U.S. Secret Service did not immediately return messages seeking comment. The Metropolitan Police Department and the local fire department referred comment to the Capitol Police.

Also Read | Ebrahim Raisi Funeral: Millions Attend Funeral Procession for Iran President in Tehran After Helicopter Crash (Watch Videos).

Earlier Wednesday, the Capitol Police issued a statement advising people to avoid the block where the RNC is located. The House sergeant at arms, the U.S. House of Representatives' chief law enforcement and protocol officer, sent out information advising traffic restrictions in the area “due to law enforcement activity at the RNC.”

Trump's handpicked leadership — including his daughter-in-law, Lara Trump, as the party's national vice chair and former North Carolina GOP Chairman Michael Whatley as RNC chairman — recently took over the RNC, completing his takeover of the national party as he closes in on a third straight GOP presidential nomination. A Trump campaign senior adviser, Chris LaCivita, has taken over as the RNC chief of staff.

Wednesday's situation comes less than two months from the Republican National Convention in Milwaukee, where Trump is slated to become the party's official 2024 nominee and at which significant protests are expected. According to a letter sent last month to the Secret Service, RNC counsel Todd Steggerda asked officials to keep protesters back farther from the site than had been originally planned, arguing that an existing plan “creates an elevated and untenable safety risk to the attending public.” (AP)

(The above story is verified and authored by Press Trust of India (PTI) staff. PTI, India’s premier news agency, employs more than 400 journalists and 500 stringers to cover almost every district and small town in India.. The views appearing in the above post do not reflect the opinions of LatestLY)