The rejection of the United States and Russia, proposed by five EU member states, came during a closed session of the UN Security Council, quoted by the Turkish news agency "Anatolia."
The agency said that the five countries, held a meeting to discuss the developments in northeastern Syria, and the Turkish peace process east of the Euphrates, in a closed meeting.
Germany strongly condemned the operation, and some countries have suggested that the UN Security Council condemn the peace process, Turkish diplomatic sources told Anatolia.
However, the United States and Russia did not agree with the proposal, and neither country used the term "condemnation" in their statement to the UN Security Council.
After the meeting, US Permanent Representative to the United Nations, Kelly Kraft, made a statement to reporters, saying that her country does not support the Turkish operation.
She said Turkey was responsible for protecting minorities in Syria, including Christians and Kurds, and not for a humanitarian crisis in Syria.
"Turkey is now responsible for not escaping a captured ISIS fighter and not reactivating it in any way," Kraft said.
After the meeting, Britain, Germany, France, Belgium and Poland made a joint statement expressing "deep concern" over the Turkish military operation in Syria.
Turkey demanded an "end to the unilateral operation" and indicated that Turkey's plan to establish a safe area in Syria to secure the return of refugees "may not meet the international standards set by the United Nations High Commissioner for Refugees."
– ANADOLU AGENCY (AR) (@aa_arabic) October 10, 2019
On Wednesday, Turkey launched a military operation in northern Syria under the name of "spring of peace" and claimed that the aim of the operation is to eliminate what it called the "terrorist corridor" to be established near the southern border of Turkey, in reference to the Kurdish "YPG", which Ankara considers it an arm of the Kurdistan Workers' Party (PKK) and is active in the US-backed Syrian Democratic Forces (SDF) in the fight against IS.