![US issues travel warnings for 23 countries [FULL LIST] – The Sun Nigeria](https://d1jcea4y7xhp7l.cloudfront.net/wp-content/uploads/2026/07/742737736_996428536516964_3014382906487402155_n.jpg "US issues travel warnings for 23 countries [FULL LIST] – The Sun Nigeria")
A potentially explosive level of methane gas was detected at the World Exposition venue in Osaka less than a week before the event’s opening on Sunday, prompting the…
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