BBC News with Fiona MacDonald
Hours after ceremonies took place in the United States on the ninth anniversary of the 9/11 attacks, protesters have been staging demonstrations over the building of an Islamic centre near Ground Zero, the place where the attacks happened.
Our correspondent Matt Wells reports.
More than 1,000 protesters against the building of a planned Muslim cultural centre near Ground Zero are taking part in a rally organized by the Stop Islamization of America campaign. Some demonstrators from an earlier and similar-size event
in favour of
the project are
mingling
at back of the crowd, provoking some heated arguments. The heavy police presence is keeping order as a selection of speakers take the stage to
denounce
the role of Islam in the West. The 9/11 commemorations have been
overshadow
ed by a debate with no compromise in sight.
At the commemorations which took place earlier, thousands of relatives of those killed in the 9/11 attacks gathered at Ground Zero where the twin towers of the World Trade Center once stood. Laura Trevelyan was there.
A bell came after the moment of silence, marking the minute the first hijacked plane struck the north tower at the World Trade Center, then began the now familiar
ritual
, reading out the names of those who perished.
"James Patrick Berger. Steven Howard Berger. John P Bergin..."