The father of a man held for the fatal stabbing of a British MP during a meeting with local voters has told British media that he was shocked and "traumatised" by his son's arrest, as police continued questioning the suspect under terrorism laws.
Harbi Ali Kullane, a former adviser to Somalia's prime minister, said British counter-terrorism police had visited him, according to the Sunday Times.
"I'm feeling very traumatised. It's not something that I expected or even dreamed of," he was quoted as saying.
British authorities have not released the name of the suspect in the killing of 69-year-old Conservative MP Sir David Amess on Friday, but British media reported the suspect was Ali Harbi Ali, 25, believed to be a British citizen with Somali heritage.
Amess, a long-serving MP, was stabbed multiple times during a regular meeting with his constituents at a church in Leigh-on-Sea, a town 62km east of London. The Metropolitan Police has described the attack as terrorism and said early investigations suggested "a potential motivation linked to Islamist extremism", without giving details.
Police have been granted extra time to question the suspect, who was arrested on suspicion of murder but has not yet been charged. The BBC and others reported that the suspect was referred to a government programme aimed at preventing people from supporting extremism some years ago, but said he was not a formal subject of interest for security services.
It is unclear what, if any, the suspect's connection to Amess was and why he targeted him. The meeting with voters was public and open to all.
In north London, police investigating the killing continued to search an apartment and another address, as officers stood guard outside.
Friday's killing renewed concern about the risks politicians run as they go about their work. The attack came five years after Labour MP Jo Cox was killed by a far-right extremist in her constituency in West Yorkshire as she was on her way to a meeting with voters.
Home Secretary Priti Patel said officials are reviewing security arrangements for MPs, and the measures being considered include police protection during regular meetings, known as "surgeries", between lawmakers and their constituents.
MPs could also be asked to share their whereabouts at all times with police, she said.
But Patel added that she did not believe that the killing of Amess should change the relationship between MPs and their voters.
"This should never, ever break that link between an elected representative and their democratic role, responsibility and duty to the people who elected them," she told Sky News on Sunday.
Lindsay Hoyle, Speaker of the House of Commons, said he was working closely with the Home Office and the police to identify ways to improve safety. But, like Patel, he said "we should not hide away".
"The very essence of being an MP is to help and be seen by our constituents. They are the people who elected us to represent them, so surely making ourselves available to them is the cornerstone of our democracy?" Hoyle wrote in the Observer and Mail on Sunday newspapers.
Many in the seaside town of Leigh-on-Sea have laid flowers in tribute to Amess, a father of five who has served in parliament since 1983 and was knighted II in 2015.
Floral wreaths and balloons piled up outside the police cordon near the church where Amess was stabbed, and a church service in the town is planned for later Sunday.
The Council of Somali Organisations, which works with Somali communities across the UK, condemned the killing, saying it was an "affront to all of our values and our democratic society itself".
The group's director, Kahiye Alim, said he believed that radicalisation of young Somalis in Britain has not been a big concern. In recent years only a handful of people have gone from the UK to Somalia to join al-Shabab, an al-Qaida-linked extremist group, he said. -AP