A lioness and a cub that strayed out of Nairobi National Park on Friday were found near Kibera while two others likely returned before dawn.
Kenya Wildlife Services spokesman Paul Gatitu told the Star on phone: "As far as we are concerned all is is well... We are grateful to the public".
Reports earlier stated that six lions sneaked out of the park.
Gatitu said the lioness that was found in a search and rescue operation may have been looking for a place to give birth.
He said it may have crossed over to the area, disturbed about the security of her cub.
The spokesman said lions have been straying out of the park into the army barracks in Lang'ata through culverts.
He said that for the last three weeks, the service has received reports of lions spotted in the barracks.
“We locked the culvert last week for lions to be captured and brought back to the park,” he said.
Nairobi National Park, Kenya's oldest, is under pressure from the rapid growth of the capital over the last decade.
Poachers have also taken their toll on the animal population, whose numbers have fallen drastically.
There are plans the Standard Gauge Railway may pass through the park.