This indicates that the bloc has not rallied behind the Philippines' claim, supported by an international tribunal Tuesday, in the face of long-standing Chinese pressure over the territory issue.
"We gave up on issuing the Asean statement," an unidentified Asean source was quoted as saying by Japan's Kyodo News agency.
Laos, which holds Asean's rotating chair, informed the members late Wednesday that there would be no joint statement "because no consensus could be reached," the source said.
The member nations had been discussing a possible joint statement since the Arbitral Tribunal of the Permanent Court of Arbitration on Tuesday upheld a case brought by the Philippines over the territory.
- DPA