Prosecutors in Glasgow are studying police and post mortem reports into the death of an 11-year-old Somali boy.
Prayers were due to be said at the school on Wednesday
Suhail Saleh died in hospital following an incident in the dinner hall of All Saints Secondary School in the Barmulloch area of the city on Tuesday.
A 12-year-old boy, who cannot be named for legal reasons, has been reported to the procurator fiscal.
The Crown Office said the boy has been released from custody pending the outcome of further enquiries.
Suhail, 11, came from a refugee family from Somalia who have lived in the city for three-and-a-half years.
Prayers were said at the school on Wednesday and floral tributes were pinned to the gates.
Scottish Executive ministers expressed their sorrow at Suhail's death during a cabinet meeting on Wednesday.
A spokeswoman said First Minister Jack McConnell told ministers he had visited the school in June and referred to the "fantastic" work being done there.
She said: "He found the school to have very high standards of discipline, and commented that the levels of aspiration were amongst the most remarkable he had seen in schools anywhere in Scotland.
"He said he thought the school would be devastated, and that the impact of the tragic events yesterday would also be felt in the wider community - a community which in three years has gone from being at the centre of concerns around race relations to being at the forefront of positive integration."
Education Minister Peter Peacock said the school had an excellent reputation for integration, and recently had the biggest fall in school exclusions of any school in the Glasgow area.
Head teacher Thomas McDonald has written to all parents informing them of the tragedy, expressing his "great sadness".
He said: "The whole school community obviously feels a deep sense of grief and our thoughts are with his family."
He added that support would be available for the pupils who required it.
Council education services convener Steven Purcell described the incident as "very tragic news".
"Our thoughts are with everyone connected with the school at this sad time, in particular of course with the family and friends of the pupil concerned," he
A post-mortem examination has been carried out.