New York police say that part of what appears to be a section of landing gear from one of the jets that were flown into the World Trade Center during the 9/11 terror attacks has been found.
The debris was discovered wedged between two New York City buildings.
An investigation is now under way to see if any human remains can be recovered.
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A suspected drunk driver ploughed into a crowd during Mardi Gras celebrations in the southern US city.
The singer had been tweeting in support of migrants when she was bombarded with abusive messages.
Ministers are reportedly considering plans in a bid to lower inward migration.