This was latest from Malaysian Airlines:
Nationalities
Following this afternoons press conference, Malaysia Airlines can confirm that a further 16 passengers nationalities have been verified. The latest breakdown of nationalities of those on board the flight is as follows:
· 189 Netherlands
· 44 Malaysia
· 27 Australia
· 12 Indonensia
· 9 UK
· 4 Belgium
· 4 Germany
· 3 Philippines
· 1 Canada
· 1 New Zealand
Four passengers nationalities remain to be verified.
http://www.malaysiaairlines.com/my/en/site/mh17.html
TYVM for the update— In his presser Obama said at least one US (phrased it as possibly a dual citizen)
At least it is now confirmed that the 23 US report was bogus.