Thai volunteer groups said on Wednesday that five had been found while the Laos Rescue Volunteer for People organisation said all seven had been located and were safe.
The reports could not immediately be verified.
Thai volunteers joined the rescue operation on Sunday, including a diver who took part in the 2018 rescue of 12 boys and their soccer coach from a flooded cave in northern Thailand.
That operation drew global attention and involved British and other foreign divers, US military personnel and other international support.
