Three black rhinos have been reported dead in the Maasai Mara National Reserve, adding to the 13 that died as a result of poisoning few months ago.
The endangered rhinos, two adults and a calf, were found at the Mara Triangle on Tuesday night.
Some officials suspected that the rhinos might have consumed a poisonous plant, while others said that the animals died of natural causes.
Narok County Commissioner George Natembeya said that one of the rhinos was 57-years-old while the mother of the calf is believed to be between 15 and 20 years old.
There are 49 black rhinos in Maasai Mara, according to Mara Conservancy, which manages the Mara Triangle.
In 1971, the park had 120 black rhinos but the number dropped to due to poaching.
Kenya Wildlife Service has launched investigations into the deaths.
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