Cannabis related issues have led to an increase in exclusions from schools, a council report has found.
Data collected in Flintshire showed that absences are increasing in the county, following similar trends across Wales.
The report highlighted illness, pupil behaviour and substance related issues as having an impact on attendance.
The council's education committee accepted the report's recommendations at a meeting on Thursday.
The report, from the council's chief officer for education Claire Homard, looked at the 2021-22 academic year. It found that attendance in Flintshire schools remains lower than pre-pandemic levels.
While illness continued to be the main factor impacting on attendance, substance related issues has led to a notable increase in exclusions across the county.