OTTAWA/london - Canada’s prime minister vowed the country would “not be intimidated” after a reported Muslim convert stormed parliament and killed a soldier, the nation’s second ‘terrorist’ attack in days.

The gunman, whose name was on a terror watch list, attempted to force his way into Canada’s parliament Wednesday before the assembly’s sergeant-at-arms shot him dead. The attack - the second this week targeting Canadian military personnel - came as Canadian jets were to join the US-led bombing campaign against militants in Iraq.

“Canada will never be intimidated,” premier Stephen Harper told the nation in a televised address after the shootings on Wednesday.

“In fact, this will lead us to strengthen our resolve and redouble our efforts and those of national security agencies to take all necessary steps to identify and counter threats and keep Canada safe,” he said.

Meanwhile, Police wrestled a disheveled man to the ground near Canada’s war memorial Thursday as Prime Minister Stephen Harper and his wife arrived to place flowers for a soldier killed there the day before.

Harper and his wife Laureen walked hand in hand to the tomb of the unknown soldier where the soldier was mortally wounded at the start of an attack by a lone gunman Wednesday in the heart of Ottawa.

As they approached the tomb, screaming suddenty erupted outside a police perimeter set up around the monument. Another man was arrested and a gun was seized from a nearby transit bus in Canada’s Atlantic port city of Halifax amid heightened security following an attack in Ottawa, police said Thursday. The city is home to the Canadian navy’s Atlantic fleet. “We can confirm we have arrested a man on Argyle St. at 11:08 am and recovered a firearm on a metro transit bus nearby,” the Halifax police said in a Twitter message.

The spectacular security breach came two days after an alleged Islamist ran over two soldiers in Quebec, killing one of them, in what officials branded a terrorist attack. In audio of the attack on parliament, repeated shots could be heard booming through its chambers.

The suspect, Michael Zehaf-Bibeau who was said to be a convert to Islam, had a record of drug offences and robbery. Dave Bathurst, who met the 32-year-old Zehaf-Bibeau in a mosque about three years ago, said his friend did not at first appear to have extremist views, the Canadian Broadcasting Corporation reported. But he said at times he exhibited a disturbing side.

“We were having a conversation in a kitchen, and I don’t know how he worded it. He said the devil is after him,” Bathurst told the the CBC. He said his friend frequently talked about the presence of Shaytan in the world - an Arabic term for devils and demons. “I think he must have been mentally ill.”

Bathurst last saw Zehaf-Bibeau praying in a mosque in the Vancouver area six weeks ago and said he spoke of wanting to go to the Middle East.

Moreover, Britain’s most high-profile Islamist preacher rejected suggestions on Thursday he had influenced the man believed to have shot dead a soldier in Ottawa, but warned there could be similar attacks in Britain from angry radicalised Muslims.

Canadian police are investigating a man named as Michael Zehaf-Bibeau, a Muslim convert, as a possible suspect in the shootings around Canada’s parliament building on Wednesday, according to a source familiar with the matter. Zehaf-Bibeau and another Islamic convert, Martin Ahmad Rouleau, who rammed his car into two Canadian soldiers in Quebec on Monday, appeared to have been influenced by radical British cleric Anjem Choudary, the source told Reuters. Rouleau’s Twitter account showed he followed several radical preachers including Choudary, who tweeted that he hoped the Quebec attacker would be admitted to heaven. ‘I don’t have any idea who the fellow was yesterday, and there were reports a few days ago the one who ran over a couple of army personnel was following me on Twitter as well,’ Choudary told Reuters. ‘The fact that someone follows you on Twitter does not mean you necessarily influenced him to do anything.’

He insisted he was only going abroad with the intent of learning about Islam and to study Arabic, Bathurst said. Zehaf-Bibeau was considered a “high risk” suspect, according to reports, whose passport had been confiscated to prevent him joining militants abroad.

He first shot and killed a Canadian soldier who was on ceremonial guard at a war memorial on Parliament Hill in downtown Ottawa, before storming into the nearby parliament building. The slain soldier was named as Corporal Nathan Cirillo. At least three people were admitted to hospital with minor injuries.

The attacker was killed, reportedly by a shot fired by the bearer of the House of Commons’ ceremonial mace, Sergeant-At-Arms Kevin Vickers, who was hailed as a hero by lawmakers. Ottawa Mayor Jim Watson said it appeared the shooter had acted alone.

Lawmakers, staff and reporters, evacuated from the historic building, spoke of intense gunfire inside.

Paul Clarke, a builder who was working in parliament at the time, said, “It’s just been a nightmare.”

A member of parliament, Maurice Vellacott, told AFP that House of Commons security had told one of his aides the suspect had been killed inside parliament.

“I heard this ‘pop, pop’ - possibly 10 shots, I don’t really know,” Liberal Party member John McKay told reporters outside.

Passers-by told reporters that a bearded man had gunned down the soldier and hijacked a passing vehicle to take him the short distance to parliament.

Local media reported that the suspect, raised in Laval, Quebec, about 10 miles (16 kilometers) from Montreal, had an extensive criminal record, including robbery and drug charges to which he pleaded guilty.

A photo of Zehaf-Bibeau circulated in the Canadian media, showing him with a scarf over the lower half of his face aiming a rifle straight ahead.

Harper had been scheduled to bestow honorary Canadian citizenship on Nobel Peace prize winner Malala Yousafzai, who was shot by the Taliban in Pakistan for campaigning for girls’ right to education, on Wednesday in Toronto. The ceremony will be rescheduled, his office said.

On Monday, 25-year-old Martin Couture-Rouleau mowed down two soldiers near Montreal, killing one of them, before being shot dead by police as he emerged from his wrecked car wielding a knife.

Couture-Rouleau was reportedly a supporter of the militant Islamic State group operating in Iraq and Syria, and on the same watch list as Zehaf-Bibeau.

The two attacks came days after Canadian authorities warned they were tracking 90 suspects, and “intelligence has indicated an individual or group within Canada or abroad has the intent and capability to commit an act of terrorism.”