2 arrested at anti-Islam rally in London, Ont.

Police arrestedtwo people Saturday during the largest protestin recent memory inLondon, Ont., which pitted anti-Islamgroups against counter-protesters.

Up to 500 people gathered in front of City Hall during the two-hour event, police estimated.

Emotions ran high, with shoving and yelling. A large police presencekept the sides apart.

A group called the Patriots of Canada Against the Islamization of the West (PEGIDA) had organized the rally on social media. Other far-right groups including one called the Three Per Cent hadsupporters there. They were wearing camouflage andblack flak jackets.

Most of the people at City Hall were opposed toPEGIDA. Counter-protesters appeared to outnumber PEGIDAsupporters about 10 to one.

One man was taken into custodyafter allegedly punchinga counter-protester who had pushed a sign towardhis face.

Police saida second person was arrested for abreachof peace.As of Saturday afternoon, nocharges had been laid.

The standoff lasted about two hours, untilPEGIDAsupporters left.

Policestudyhate groups

London Police Supt. Chris Newton said authorities havebeen doing their homework on extremist groups.

"It's certainly a significant safety concern when you have large numbers andespecially when there are two opposing points of view," said Newton.

"Especially given the political climate we are in, especially given some of the incidents down south which are certainly impacting people's perspectives up here."

Jenny Hill, who would only say that she was from southwestern Ontario, was one of the PEGIDA supporters in London.

"We are here to give information about what is happening in our mosques here, what is happening in our universities, and the encroachment of Islam in our society," said Hill.

Len Boksman came out to join the counter-protest.

"There have been hate groups in London for a long period of time. This is not something new," said the long-time London resident.

"I think all over the world, there's been an awakening of the right and it's scary. I think everybody should stand up."

PEGIDAhas its roots in afar-right political movement in Germany.

Before the rally, there hadbeen a strong signal from the London community that hatred and racism would not be tolerated.

This week, London's city council passed a motion affirmingthat activities that promote hatewould be banned in the city.

Several local politicians joined the counter-protesters on Saturday.