Chancellor Angela Merkel signalled Sunday that Germany will suspend exports of military equipment to Saudi Arabia, and U.K. Foreign Secretary Jeremy Hunt promised to take "serious" measures against the kingdom once an investigation is complete.
They draw some comfort from an unlikely figure, Erdogan, who according to his aides sees the killing as a personal insult.
Trudeau condemned the death of Khashoggi and said Foreign Minister Chrystia Freeland had been talking to allies to discuss the next steps. But he pointedly did not mention Crown Prince Mohammed, saying that the order to kill Khashoggi must have come from high up within the Saudi government.
The secretary of state also told reporters at the State Department that the USA has identified some of the people "who we suspect to be responsible" for Khashoggi's death.
A member of the team dressed in Khashoggi's clothes to make it appear as if he had left the consulate.
Speaking to Reuters on Monday, IEA's Birol said, when asked about the oil market concerns over Saudi Arabia possibly retaliating in response to potential sanctions by the global powers over the killing of the journalist that "There are many geopolitical, non-energy related issues, which could also have further impact on the oil markets".
"Those partners who are here with us today to continue that journey with us are certainly going to look back and find out ... how committed the kingdom is to its partners that stay the course", Al-Falih said.
The new video broadcast by CNN, as well as a pro-government Turkish newspaper's report that a member of Prince Mohammed's entourage made four calls to the royal's office from the consulate around the same time, put more pressure on the kingdom.
There will be no cover-up in Jamal Khashoggi's death - Turkey
Democratic Representative Adam Schiff of California said Saudi Arabia's claim that Mr Khashoggi died in a brawl was not credible. Saudi Arabia has plunged into an worldwide crisis over the fate of Khashoggi, who was critical of the crown prince.
Vice President Mike Pence said earlier that Khashoggi's death at Saudi Arabia's consulate in Istanbul, Turkey, "will not go without an American response".
Surveillance video shows Khashoggi walk into the consulate on October 2, leaving his fiancee outside.
Khashoggi, a columnist for The Washington Post, went missing after entering the Saudi Consulate in Istanbul on October 2.
Separately, Erdoğan offered condolences to the family and relatives of Khashoggi.
Uber CEO Dara Khosrowshahi, who also withdrew from the event, said the firm was awaiting the full facts on Khashoggi's case before deciding whether that would affect Saudi involvement in the ride-hailing service.
Some top United States lawmakers turned their ire on the crown prince and said they believed he ordered the killing.