Reports that Captain said he 'hit something' late in T/O roll with port wing have been confrimed. And investigators have found an 'extra' A/C wheel & tyre on the RWY that doesn't belong to SQ 006. X/W reported to be 20-30 knots at time and RWY braking action poor.
Condolences to all involved, there is no nice side to these things. B4 we all slam these guys just remember. "There by the grace of God go I".