White House releases summary conversation

The White House has released details of a phone call between President Trump and his Ukrainian counterpart that has triggered a US impeachment inquiry, reports BBC.

It shows Mr Trump asked Volodymyr Zelensky on July 25 to investigate Democratic candidate Joe Biden, whose son worked for a Ukrainian gas firm.

Mr Trump denies withholding US military aid to Ukraine as leverage in a bid to smear his political rival, Mr Biden.

The Trump-Ukraine phone call is part of a whistleblower's complaint.

Reacting to the controversy on Wednesday morning at the United Nations General Assembly in New York City, Mr Trump said it was the "single greatest witch hunt in American history".

"The way you had that built up that call, it was going to be the call from hell," Mr Trump said. "It turned out to be a nothing call."