Washington (CNN) A Republican member of one of the House committees involved in the impeachment inquiry into President Donald Trump said Sunday that information provided about Trump during a closed-door deposition of a former National Security Council official "is alarming" and "not OK."

"Well, of course, all of that is alarming. As I've said from the beginning, I think this is not OK. The President of the United States shouldn't even in the original phone call be on the phone with the president of another country and raise his political opponent," Rep. Mike Turner, an Ohio Republican, told CNN's Jake Tapper on "State of the Union."

"So, no, this is not OK," he added on Sunday.

On Saturday, Morrison testified that US ambassador to the European Union Gordon Sondland was acting at Trump's instruction in his dealings with Ukraine. According to Morrison's deposition, Sondland said the President told him that Ukrainian President Volodymyr Zelensky "must announce the opening of the investigations" into former Vice President Joe Biden and his son, Hunter Biden. Morrison also testified that US aid to Ukraine was conditioned on the country announcing an investigation into the Bidens. There is no evidence of wrongdoing by either Biden in Ukraine.

Morrison's testimony , which was released by House impeachment investigators on Saturday, adds additional corroboration to the testimony of others, like US diplomat Bill Taylor , that Sondland said he was acting at Trump's direction when he was urging Ukraine to announce political investigations.

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