Infections linked to people who arrived from the UK were reported in Spain, Switzerland, Sweden and France.
A couple found infected in Ontario, Canada, had no known travel history or high-risk contacts, officials say.
Japan is to ban most non-resident foreign nationals from entering the country for a month from Monday.
Europe, more cases of the new Covid variant have been found. Spain is the latest European country to confirm four cases of the more contagious coronavirus variant recently identified in the UK.
Infections linked to people who arrived from the UK were reported in Spain, Switzerland, Sweden and France.
A couple found infected in Ontario, Canada, had no known travel history or high-risk contacts, officials say.
Japan is to ban most non-resident foreign nationals from entering the country for a month from Monday.
Madrid deputy health chief Antonio Zapatero said, the infections – all in Madrid – were linked to recent UK travel.
Other countries have also reported cases of the new variant. Japan on Friday confirmed five infections in passengers who had all arrived from the UK, while cases in Denmark, Sweden, Germany, Italy, the Netherlands and Australia were reported earlier.
The report from Spain came just hours after France confirmed its first patient known to have the new variant.
