US Secretary of State Mike Pompeo has been subpoenaed.
A Democratic-led US House of Representatives committee issued the order on Friday.
They want to him to hand over documents regarding contact the US government had with the Ukrainian government.
Earlier this week House Speaker Nancy Pelosi launched a congressional impeachment inquiry of US President Donald Trump.
Thousands stranded at Japan's Narita airport after record rain kills four
Record rainfall has left thousands of travellers stranded at Tokyo's Narita airport on Friday morning as flooding in the surrounding area disrupted transport, knocked out power to homes and claimed at least four lives.
Air India A320 briefly lost key flight controls during 300-foot drop, Airbus analysis shows
An Air India Airbus that dropped about 300 feet this month, injuring 24 people on board, briefly lost key flight controls after registering losses in all three hydraulic systems, according to a preliminary Airbus analysis reviewed by Reuters.
Three killed, 17 injured in Cairo mall helium cylinder explosion
Three people have been killed and 17 others injured on Thursday following a fire that broke out from a helium cylinder explosion at Arabella Plaza Mall in Egypt's New Cairo.
US to apply economic measures 'never seen' on Iran, says Treasury Secretary
US Treasury Secretary Scott Bessent said on Thursday that the United States is going to apply economic measures that have "never been seen" on Iran.
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