A 23-year-old man has been arrested in connection with two attacks on young children in Edmonton, one in the bathroom of a public school.

Johnathan Quinn Lewis has been charged with aggravated sexual assault, choking to overcome resistance, uttering death threats, sexual interference, assault, sexual assault and two counts of unlawful confinement.

Police say two girls, aged eight and 12, were attacked on Jan. 8, one girl at Victoria School of Visual and Performing Arts and the other in a residential area in the downtown.

Edmonton Police Chief Mike Boyd said Monday that police are still investigating an earlier attack on a Grade 2 girl at Oliver School.

"The Oliver School incident investigation is still ongoing and at some point in the near future that may also come before the courts."

Boyd said Lewis was a suspect in that case and police monitored him after the alleged attack, but the police chief wouldn't provide any details about how that was done or for how long.

Lewis made his first court appearance Monday morning. He has been remanded in custody for psychological assessment.

Edmonton Public School staff reviewed security procedures aftertwoalleged attacks in school washrooms.

In April, a Grade 2 student at Oliver school was allegedly grabbed by a man hiding in a stall when she went to the washroom on her way out for recess.

Then in January, two Grade 3 girls told police they were in the bathroom at Victoria school when one of the girls was assaulted. Police believed the suspect entered the bathroom before the girls arrived.