No criminal charges will be filed in the death of Abdullahi Charif, the 12-year-old boy who drowned Feb. 27 in a St. Louis Park Middle School swimming pool.

Charif's family issued a statement that said they were very upset to learn Thursday that no criminal charges would be filed in the case, which was investigated by the school district and the St. Louis Park Police Department. The case was reviewed by the Hennepin County attorney's office.

"This decision has been made despite the fact that no one has yet explained how Abdullahi was able to sink to the bottom of the deep end of the pool and drown without being detected by those responsible for his safety," according to the statement released by the family's attorney.

The family has said that Charif did not know how to swim.

They are asking for anyone with information about the incident to contact attorneys Fred Pritzker or Eric Hageman at 612-338-0202.