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Nazareth frontman Dan McCafferty continues to battle health problems. says the Scottish group had to cut their performance short at the Summerdays Festival in Switzerland last Friday because the 66-year-old singer was having trouble breathing. The band then canceled their appearance Sunday at a Belgium festival. 

The Belgium festival organizer tells the "Gazet Van Antwerpen" that McCafferty was admitted to a hospital in Switzerland after suffering his second stroke "in a short time." 

Nazareth went through a similar incident last month in Canada.  McCafferty experienced breathing difficulties and collapsed on stage just moments after the band launched a concert in Cranbrook, British Columbia. 

At that time the band made no announcement on Dan's condition, and so far Nazareth hasn't made an official statement on the latest incident.  However, the tour page has been removed from their website. 

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