Incident in Swansea city centre "turned out to be a hoax," say police.
The gig advert was only expected to fetch between £400 to £800 at an auction of Mary Hopkin's collection.
Extra security is expected at events across Wales as the UK's terror threat remains at critical.
The Welsh Rugby Union's proposed temporary takeover of the Cardiff Blues has been called off.
Steff Evans will be available to play in Scarlets' Pro12 final against Munster after red card he received against Leinster is rescinded.
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The parallels between Earth and other planets