Photos which have emerged on social media showing a number of lions who are just skin and bones have caused outrage among animal activists.
The lions are being kept at the Al-Qureshi Park in Khartoum, Sudan and it appears that they have been suffering from a lack of food, water and medicine for a long time.
An online petition has been started to put pressure to have the lions removed from the zoo and to be given the required treatment. Within a few weeks, the lions lost a lot of weight and have become very weak.
Sudan is going through an economic crisis and Essamelddine Hajjar, who works at the zoo said that it is very difficult to buy food for the animals. He said that workers even need to take money out of their own pockets to feed the animals. The zoo is financed by the Government as well as private industry.