Over 50 people died and more than 200 were wounded on Tuesday when a Nigerian fighter jet on the prowl for fighters of the militant terrorist group Boko Haram ended up bombing a government run refugee camp in Northern Nigeria.

The camp, situated in the township of Rann near the Cameroonian and Chadian borders, housed people fleeing from the group whose actions has decimated so much of Northern Nigeria and even the aforementioned neighbouring countries.

The air force plane mistakenly bombed the facility, with Doctors Without Borders saying they counted about 50 dead and over 200 wounded from the blast. The Nigerian government has refused to release official casualty numbers from the bombing. The Red Cross said they lost six members with 12 wounded.

The wounded are being attended to by Doctors Without Borders staff on the ground plus emergency workers who arrived on the scene in the aftermath of the bombing.

“This large-scale attack on vulnerable people who have already fled from extreme violence is shocking and unacceptable,” said Dr. Jean-Clément Cabrol, the director of operations for Doctors Without Borders. “The safety of civilians must be respected. We are urgently calling on all parties to ensure the facilitation of medical evacuations by air or road for survivors who are in need of emergency care.”

Nigerian President Muhammadu Buhari acknowledged the tragic news on twitter.

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I received with regret news that the Air Force,working to mop up BH insurgents, accidentally bombed a civilian community in Rann,Borno State

— Muhammadu Buhari (@MBuhari) January 17, 2017