Twelve medical students of the University for Development Studies (UDS) were admitted at the Tamale Teaching Hospital after food they ate at a colleague’s birthday party was allegedly poisoned.

The 12 are year six students offering their clinicals at the Tamale Teaching Hospital.

Sources said some of the students after eating the pastries hallucinated while others collapsed, Radio Justice’s Martina Bugri reported.

She told Joy News, hospital authorities say the students are in stable condition, but the police add that the students "are in pain".

Samples of the food have been taken by the Food and Drugs Authority for laboratory test as the police investigate the alleged poisoning.

According to the police, they are also interested in finding out why the person who was celebrating the birthday did not eat as much as the others did.

Northern Regional Crime Officer, Superintendent Mahama Arhin, told Joy News the birthday boy told them “he took just small…we want to know why he didn’t take as much as he gave to the friends”.

Meanwhile, police preliminary investigations suggest that the margarine used to prepare the pastries might have been contaminated.