The four black rhinos killed at the Lewa Conservancy by poachers last week have been identified. Rhinotek, an 11-year-old female rhino, was found dead at midday on Monday.

Initial assessments did not give a clear indication of the cause of Rhinotek's death, but further examinations by vets found out that she had died from a bullet wound in the stomach.

Nyota, a well known 20-year-old female and Serian, a seven year-old male, were shot dead at approximately 1am on Tuesday. Jazz, a male rhino, was found dead late on Tuesday afternoon.

The loss of the four brings down the rhino population in Lewa to just 71. Three of the rhino horn sets were still intact and have been recovered, but the poachers made away with the rest.

"These incidents serve as a constant reminder of the harsh reality and rapidly escalating threat faced by rhinos. Lewa is now more than ever determined to counter these threats by increasing our security," said Mike Watson, the CEO of Lewa Conservancy. Kenya now has just about 600 rhinos left.