The New York City Office of the Chief Medical Examiner said that Ivana Trump died as a result of being hit in the torso with an object.
The official ruling came a day after Ivana was found dead in her Manhattan residence.
The depositions of Donald Trump and two of his children that were to have taken place next week were put off at the request of his lawyers.
The cause of Ivana's death wasblunt impact trauma and the manner of her death was accidental.
OCME will not comment on the investigation after releasing this determination.
According to NBC News, a senior New York City official said that Ivana Trump was found on the spiral staircase of her apartment.
Donald Trump was going to hold a rally in Arizona on Saturday to support the Republican candidate for governor, but he changed his mind after the ME's findings were out.
Ivana was born in what is now the Czech Republic.
She held top positions in his companies after she married the real-estate mogul.
The couple had three children.
The New York Post and Daily News reported on the Trumps' divorce battle as much as they did in the courtroom.
Donald Trump had an affair with the woman who became his second wife.
Trump wed his third wife in 2005.
An investigation into how the Trump Organization has stated the value of various real estate assets was going to lead to the depositions of the elder Trump and Donald Jr. James is looking into the legality of the company's valuations for financial benefits.
Eric Trump invoked his Fifth Amendment right against self-incrimination more than 500 times, according to a January court filing.
In light of the passing of Ivana Trump, we received a request from counsel for Donald Trump and his children to adjourn all depositions.
The depositions will be re-scheduling as quickly as possible. The spokeswoman said there was no other information to give.
Our sympathies are with the Trump family.