The Danish Veterinary and Food Administration said in a statement that these eggs were mostly sold to catering firms, cafeterias and cafes.
The countries that have received the eggs are Britain, Sweden, Austria, Ireland, Italy, Luxembourg, Poland, Romania, Slovenia, Slovakia and Denmark - along with non-EU Switzerland and Hong Kong, BBC reported.
"Our inspectors are monitoring poultry farms around the country", she added.
Millions of eggs have been pulled off the shelves in Belgium and Germany, following news of the scare, and 180 farms have been temporarily closed. This insecticide if consumed in high quantities can cause damage to kidneys, liver and thyroid glands.
The Food Standards Agency has warned about 700,000 eggs contaminated with the insecticide have been sent to the United Kingdom from potentially contaminated Dutch farms.
Photo taken on August 9, 2017 shows eggs sold in a Belgian market, in Brussels, Belgium.
Numerous eggs were mixed with others which had not come from affected farms so Fipronil residues would be highly diluted, the FSA said.
"Blaming and shaming will bring us nowhere and I want to stop this", European Commissioner for Health and Food Safety Vytenis Andriukaitis said on Friday.More news: Rafa Benitez admits he's not happy with summer business so far
More news: Gase confirms Jay Cutler has interest in joining Miami
More news: Senate Votes Against 'skinny' Bill To Repeal Obamacare
Dutch investigators confirmed they had arrested two managers from farms allegedly using fipronil.
The British Egg Industry Council said shell eggs on sale to consumers in the United Kingdom were not affected.
Two persons have been arrested in the Netherlands over the ongoing contaminated eggs scandal, the Dutch public prosecutor stated on Thursday.
But the Food Standards Agency said the contamination posed a low risk to the public. The company used a fipronil containing insecticide to treat stables at over 150 Dutch poultry farms for blood lice.
Yesterday it emerged that Dutch authorities knew as far back as November that some eggs in the country were contaminated with the insecticide - but failed to notify their European partners at the time, claimed Belgium's agriculture minister.
But it did say that all egg imports undergo "periodic analysis and inspection" at ministry food laboratories, and now meet all approved standards.