21 babies died during September within 28 days of birth, according to official figures
While infant death rates vary widely from month to month the increase was larger than expected from chance alone.
Public Health Scotland (PHS) and other agencies are now looking into whether the Covid pandemic or other factors could be behind the increase.
Herald Scotland reports: Control and warning limits are designed to flag up to public health teams when neonatal, stillbirth or other infant deaths are occurring at unexpectedly high or low levels which may not be due to chance.
Concerns have previously been raised about the potential impact of Covid on maternity services and maternal wellbeing, but it is the first time since the pandemic began that neonatal deaths have been so abnormally above average.
h/t ST. FLOYD OF FENTANYL