Police are investigating a suspicious package sent to the offices of the Miami-Dade Democratic Party.

It comes two days after a 15th suspicious package was intercepted in Atlanta on its way to the CNN headquarters - what was the latest in a series of packages containing suspected pipe bombs and sent to prominent Democrats and critics of Donald Trump.

CNN president Jeff Zucker said as of last week all domestic mail addressed to the news network is screened at off-site locations after it received two other packages addressed to the network's contributors, and bomb squads were called to the Atlanta post office where the package was detected.

The package in Miami was sent to the Democrat organisations office inside the CIC Miami building, where the local police bomb squad is investigating it.

Police confirmed members of the organisation were not expecting a package and thus found it suspicious.

Ricky Junquera, Vice Chair for the Democratic party of Miami Dade County, said in a statement: "Given the events of last week, we are on high alert at our office and reported to building management, who notified police, after receiving a package from an unrecognised sender. We are grateful for the first responders and police who work so diligently to keep us safe".

Suspicious package addressed to former Director of National Intelligence James Clapper found in Manhattan

Traffic in the surrounding area has been blocked off as a precaution.

Police have not confirmed a connection between last week's incidents and this as yet but yet another suspicious package was found by the California Democratic Party Headquarters located in the state capital of Sacramento.

The party organisation tweeted it received it "in the mail, which we reported to law enforcement out of an abundance of caution. We have evacuated (sic) our headquarters building as a safety (sic) precaution, and law enforcement is presently addressing the situation"

Explosive packages sent to prominent Democrats and CNN Show all 11 1 /11 Explosive packages sent to prominent Democrats and CNN Explosive packages sent to prominent Democrats and CNN Barack Obama The Secret Service intercepted a package en route to the Washington D.C. residence of former President Barack Obama on Wednesday 23 October Getty Explosive packages sent to prominent Democrats and CNN Hillary and Bill Clinton A package was delivered to the Chappaqua, New York home of former US President Bill Clinton and former Secretary of State and Democratic presidential candidate Hillary Clinton on Tuesday 23 October Getty Explosive packages sent to prominent Democrats and CNN Joe Biden Two packages adressed to former Vice-president Joe Biden were found at a sorting facility in Delaware on Thursday 25 October AFP/Getty Explosive packages sent to prominent Democrats and CNN George Soros A package was delivered to the New York home of Billionaire investor and funder of the Democrats George Soros on Monday 22 October AFP/Getty Explosive packages sent to prominent Democrats and CNN CNN and John Brennan A package was delivered to former CIA director John Brennan at the CNN offices in New York on Wednesday 23 October Getty Explosive packages sent to prominent Democrats and CNN Debbie Wasserman Schultz A package was delivered to the office of Democratic Congresswoman Debbie Wasserman Schultz on Wednesday 23 October, it was addressed to former attorney general Eric Holder Getty Explosive packages sent to prominent Democrats and CNN Eric Holder The package that was delivered to the office of Democratic Congresswoman Debbie Wasserman Schultz was addressed to former attorney general Eric Holder Getty Explosive packages sent to prominent Democrats and CNN Maxine Waters Two packages were sent to Democratic congresswoman Maxine Waters on Wednesday 23 October, one to LA one to D.C. Getty Explosive packages sent to prominent Democrats and CNN Robert De Niro A package was delivered to actor Robert De Niro in New York on Thursday 25 October AFP/Getty Explosive packages sent to prominent Democrats and CNN Cory Booker A package found in Florida was addressed to Democratic Senator Cory Booker on Friday 26 October Getty Explosive packages sent to prominent Democrats and CNN James Clapper NYPD intercepted a package addressed to former directo of national intelligence James Clapper on on Friday 26 October AFP/Getty

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Ms Waters and Mr Biden both received two packages.

Mr Sayoc appeared in court and documents stated he may have planned the attack for more than three months.

The packages also contained a return address for House Democrat from south Florida and former Democratic National Chair Debbie Wasserman-Schultz.