UPDATE:

WASHINGTON (AP) — A law enforcement official says a second package addressed to former Vice President Joe Biden has been intercepted at a mail facility in Wilmington, Delaware.

The official says it has similar markings and characteristics as the packages containing bombs sent to other prominent Democrats.

The official said another package addressed to Biden was also found Thursday morning, that one at a postal center in New Castle, Delaware.

The official wasn't authorized to discuss an ongoing investigation publicly and spoke to The Associated Press on the condition of anonymity.

Several packages containing pipe bombs packed with shards of glass have been intercepted in the last few days. They targeted Hillary Clinton, former President Barack Obama, CNN and others.

A New York City police bomb squad has recovered a suspicious package addressed to Robert De Niro.

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WASHINGTON (AP) — A law enforcement official says a package addressed to former Vice President Joe Biden appears similar to packages containing bombs sent to prominent Democrats and has been intercepted at a Delaware mail facility.

The official wasn't authorized to discuss an ongoing investigation publicly and spoke to The Associated Press on Thursday on the condition of anonymity.

The FBI confirms there is law enforcement activity at the U.S. mail facility in New Castle, Delaware. It says federal agents and New Castle County Police are responding to the facility.

Earlier this morning police found a package suspected to be a bomb addressed to Robert De Niro in New York City.

Yesterday, authorities responded to several suspicious packages addressed to public figures including the Clintons, the Obamas, former CIA director John Brennan at CNN's New York office, Rep. Maxine Waters, Rep. Debbie Wasserman Schultz and former Attorney General Eric Holder. Another suspicious package was found Monday addressed to George Soros.

None of the bombs detonated, and nobody was hurt.

This story will be updated.