The match started before Buckingham Palace announced the passing of Elizabeth II, who was 96 years old.
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And as a mark of respect to the iconic British monarch, a minute's silence was held before the start of the second half at the Stadion Letzigrund.
The match then resumed with Arsenal claiming a 2-1 victory in the Group A clash.
Marquinhos put the Gunners ahead in the 17th minute before Mirlind Kryezin scored a penalty just before half time.
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Mikel Arteta's side retook the lead as Eddie Nketiah headed in a cross from the right on 62 minutes.
Manchester United's Europa League opener, which sees them take on Real Sociedad, will take place. The match kicks off at 8pm.
West Ham's Europa Conference League match at home to Romanian side FCSB at the London Stadium will also go ahead as scheduled at 8pm.
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