Braverman posted on X/Twitter on Sunday morning: "Whenever Israel is attacked, Islamists and other racists use Israeli defensive measures as a pretext to stir up hatred against British Jews.
"Yesterday I spoke with @CST-UK to ensure the Government is doing everything necessary for the protection of our Jewish communities.
"There must be zero tolerance for antisemitism or glorification of terrorism on the streets of Britain.
"I expect the police to use the full force of the law against displays of support for Hamas, other proscribed terrorist groups or attempts to intimidate British Jews."
Riley's post on the social media site said: "Acton, half an hour ago. Popped into a cafe for some baklava with the kids and our Ukrainian friends.
"People have been brutally murdered, kidnapped and there are people in London dancing.
"Just had a reassuring call with the police, if anyone is scared, please call them."
She added: "Most people understand this is an abomination. No-one should cheer war and death."
Jenrick shared Riley's post and said: "These disgusting people are glorifying the terrorist activities of Hamas, a proscribed organisation.
"There is no place for this in the UK. I trust @metpoliceuk will be taking this seriously."
A Metropolitan Police spokesperson said: "We are aware of a number of incidents, including those that have been shared on social media, in relation to the ongoing conflict in Israel and the border with Gaza.
"The Met has increased policing patrols across parts of London in order to provide a visible presence and reassurance to our communities.
"We remain in contact with partners and community leaders to listen to any concerns.
"Anyone who experiences threatening behaviour or is worried about their safety is urged to contact police.
"We are aware that the ongoing conflict may lead to protests over the coming days. We will ensure that an appropriate policing plan is in place in order to balance the right to protest against any disruption to Londoners."
