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.
All 7 on board killed after air ambulance crashes in India
An air ambulance crash in Jharkhand’s Chatra district has killed all seven people on board on Monday night, with the aircraft initially headed for Delhi from Ranchi.
US judge permanently blocks release of report on Trump documents case
A US judge has permanently barred the Justice Department on Monday from releasing a prosecutor's report on the criminal case accusing President Donald Trump of unlawfully retaining classified documents following his first term in office.
Former UK ambassador Mandelson released on bail after Epstein revelations
Former British ambassador to the US, Peter Mandelson, was released from police custody on Tuesday after being arrested in London on suspicion of misconduct in public office, following revelations over his ties to Jeffrey Epstein.
Russian attack on Ukraine's Odesa region killed two people, injured three
A Russian attack on Ukraine's southern Odesa region killed two people and injured three overnight, Ukraine's emergency service and a government official said on Monday.
Duterte was 'pivotal' in murder of thousands, ICC prosecutors say
Former Philippine President Rodrigo Duterte was "pivotal" in the murder of thousands of people during his rule, prosecutors at the International Criminal Court (ICC) said on Monday, as they pushed for his trial to go ahead.
