Law enforcement authorities intercepted suspicious packages Friday sent to Sen. Kamala Harris Kamala HarrisPelosi: Trump Supreme Court pick 'threatens' Affordable Care Act What Kamala Harris' VP nomination means to us Harris slams Trump's Supreme Court pick as an attempt to 'destroy the Affordable Care Act' MORE (D-Calif.) and Democratic mega-donor Tom Steyer amid concerns about more explosive devices sent through the mail.

The package sent to Harris was intercepted in Sacramento, and the package sent to Steyer was found in Burlingame, Calif.

ADVERTISEMENT

“Our office was informed that a suspicious package was addressed to the Senator similar to those that have been sent to other elected officials. Our understanding is a trained postal employee identified the package at a Sacramento mail facility and reported it to the authorities. No one was injured,” a Harris aide said in a statement to The Hill.

In a later statement, Harris spokesperson Lily Adams said the nation's leaders are responsible for taking "seriously the power they hold."

“At this moment, it is incumbent upon leaders across the political spectrum to take seriously the power they hold," Adams wrote. It is the responsibility of our leaders to use their role as public figures to elevate our discourse and bring people together.”

Steyer said in a statement a “suspicious package” was sent to him, but did not connect it with the others that have been sent around the country.

FBI Director Chris Wray said during a press conference Friday afternoon that law enforcement has taken possession of 13 explosive devices, but acknowledged there may be more.

The package sent to Harris was confirmed by FBI field agent Sean Reagan late Friday to be the 13th suspicious package sent through the mail this week. The one sent to Steyer, if indeed connected with the explosive devices, would be the 14th.

Harris and Steyer have both been vocal critics of President Trump Donald John TrumpBiden says voters should choose who nominates Supreme Court justice Trump, Biden will not shake hands at first debate due to COVID-19 Pelosi: Trump Supreme Court pick 'threatens' Affordable Care Act MORE. Harris has ripped the president’s rhetoric and policies and is considered to be a possible presidential opponent to Trump in 2020, while Steyer has funded efforts to impeach him.

Other devices have been sent to Democratic donor George Soros, former Secretary of State Hillary Clinton Hillary Diane Rodham ClintonThe Memo: Trump furor stokes fears of unrest Bloomberg rolls out M ad buy to boost Biden in Florida Hillicon Valley: Productivity, fatigue, cybersecurity emerge as top concerns amid pandemic | Facebook critics launch alternative oversight board | Google to temporarily bar election ads after polls close MORE, former President Obama, former Attorney General Eric Holder Eric Himpton HolderThe Hill's Campaign Report: Biden on Trump: 'He'll leave' l GOP laywers brush off Trump's election remarks l Obama's endorsements Obama endorses Warnock in crowded Georgia Senate race The Hill's Campaign Report: Trump's rally risk | Biden ramps up legal team | Biden hits Trump over climate policy MORE, former CIA Director John Brennan John Owen BrennanJournalism or partisanship? The media's mistakes of 2016 continue in 2020 Comey on Clinton tweet: 'I regret only being involved in the 2016 election' Ex-CIA Director Brennan questioned for 8 hours in Durham review of Russia probe MORE at the CNN offices in New York, Rep. Maxine Waters Maxine Moore WatersPowell, Mnuchin stress limits of current emergency lending programs Pelosi: House will stay in session until agreement is reached on coronavirus relief Omar invokes father's death from coronavirus in reaction to Woodward book MORE (D-Calif.), former Vice President Joe Biden Joe BidenBiden says voters should choose who nominates Supreme Court justice Trump, Biden will not shake hands at first debate due to COVID-19 Joe Biden should enact critical government reforms if he wins MORE, actor Robert De Niro, Sen. Cory Booker Cory Anthony BookerSunday shows preview: Lawmakers prepare for SCOTUS confirmation hearings before election The movement to reform animal agriculture has reached a tipping point Watchdog confirms State Dept. canceled award for journalist who criticized Trump MORE (D-N.J.) and former Director of National Intelligence James Clapper James Robert ClapperOn China, Biden is no Nixon — and no Trump The Hill's 12:30 Report - Speculation over Biden's running mate announcement Trump slams former intelligence officials to explain 'reluctance to embrace' agencies MORE, all of whom have been critical of and criticized by Trump.

“I think anyone who has in any way publicly been a critic of President Trump needs to be on extra alert and take precautions with respect to mail. At the same time we shouldn’t get too overblown about it, to overwrought about it … at this point. I have a lot of confidence in all the law enforcement elements involved in this,” Clapper said on CNN after the package addressed to him was discovered.

No explosive devices have gone off and no injuries have been reported involving the packages.

The packages have sparked a national conversation over the divisiveness of America’s current political rhetoric and a bipartisan call for both sides to ease tensions. Trump has condemned the suspected explosive devices and issued a call for unity on Wednesday.

"We have to come together and send one very clear, strong, unmistakable message that acts or threats of political violence of any kind have no place in the United States of America,” Trump said at a White House event.

-- Updated 5:20 p.m.