Samsung Galaxy Note 7: US cellphone carriers suspend replacement efforts

AT&T, T-Mobile, Verizon and Sprint have stopped providing the phones pending new investigation of most recent safety concerns

All four of the US's big mobile phone providers have stopped providing replacement Samsung Galaxy Note 7 smartphones due to concerns that the new phones are still overheating and, in some cases catching on fire.

Over the past 24 hours AT&T, T-Mobile, Verizon and Sprint have suspended handing out Note 7 phones - which were being issued as replacements following an earlier US government safety recall - pending investigation of the fresh incidents.