Latest figures from the Office for National Statistics (ONS) suggest Covid-19 fatalities in North Wales were around 50% higher than previously thought.
The ONS statistics up to May 8 show 252 people died in North Wales had Covid-19 listed as a cause on their death certificates.
The figure from Public Health Wales (PHW) up to May 8 showed 167 had died after being tested for the disease and dying in hospitals or care homes.
The current total from PHW as of May 19 is 207 deaths from the novel coronavirus strain.
The overall number of deaths from all causes in the region dropped markedly, with 187 up to week ending May 8, compared to 261 seven days previously.
However Covid-19 deaths did not follow the trend, dropping by just three to 45 in the week ending May 8 - representing almost a quarter of all recorded fatalities in the region, up from 18% of all deaths the week before.
Anglesey saw seven people die from Covid-19 in the week to May 8, an increase of six and the highest total so far.
In Flintshire the number of people dying weekly from the novel coronavirus strain rose from seven to 13, after it looked like the area had passed its peak with the number of Covid-19 deaths declining in the previous fortnight.
In Conwy the number taken by the virus stayed static at 10 but there was better news in Denbighshire, Wrexham and Gwynedd where the number of coronavirus fatalities declined week on week.
ONS figures on Covid-19 deaths in each county, in the week ending May 8 (place of death in brackets):
Anglesey Seven deaths (all hospital)
Gwynedd Three deaths (two care home, one hospital)
Conwy 10 deaths (three care home, seven hospital)
Denbighshire Nine deaths (one care home, eight hospital)
Flintshire 13 deaths (two care home, 10 hospital, one at home)
Wrexham Three deaths (one care home, two hospital)
According to the ONS across Wales there were 1,852 deaths from Covid-19 up to May 8, which is 730 more than Public Health wales' figures up to the same date.
