Aerial assessment showed that Bua province on the northern island of Vanua Levu suffered 70% damage and destruction, while the small island of Kia was completely destroyed, Fiji Red Cross Director General Ilisapeci Rokotunidau said.
The vast majority of deaths have occurred in Germany, while media reports suggest at least 24 people have died in Belgium. It is estimated thousands of Germans have been homeless after buildings collapsed or were deemed high risk.
The Netherlands remains on high alert as overflowing rivers threatened towns and villages throughout the southern province of Limburg.
The death toll in Germany has risen to at least 103.Germany's most read daily newspaper, Bild, headlined its front page "Floods of Death" after heavy rain fell in several regions of the country.
Police put the toll from the hard-hit Ahrweiler area of western Germany's Rhineland-Palatinate state at 110 and said they feared the number may still rise. In neighbouring North Rhine-Westphalia state, Germany's most populous, 45 people were confirmed dead, including four firefighters.