Britain's two largest political parties have urged all members of parliament to contact police to review their personal security following the murder of Labour Party lawmaker Jo Cox, according to Friday media reports.
"The main concern is around public events and surgeries [one-on-one constituent meetings]," James Berry, a Conservative member of parliament, told Sky News.
"The tragedy here is that Jo was brutally murdered after her constituency surgery, trying to do her democratic duty," Berry said. "That's a big concern for all MPs."
The Times reported that police in Cox's West Yorkshire constituency had reviewed her security in the last three months after she "faced a string of security threats" and received threatening messages.
There was no known link between the threats and Tommy Mair, the 52-year-old local man arrested on suspicion of murdering Cox, the newspaper said.
Cox, 41, was stabbed and shot as she was meeting constituents at a local library in Birstall, West Yorkshire.
The attack came one week before Britain holds an in-out referendum on its EU membership.
Cox supported the Remain side, which, like the rival Leave camp, suspended its campaigning following her murder.
Cox, who was married with two children, was elected to represent Batley and Spen during the last general election in 2015. Before entering politics, she had worked for various aid organisations including Oxfam and the Bill and Melinda Gates Foundation.