Mark Joffe said the survivors have been left in an 'unimaginable' situation after the brutal attack on their community.
Flags and replica kits will also be banned at tonight's game between England and Australia.
The woman has detained under the Terrorism Act 2000.
Bodies can be seen on the floor in the video clip.
The platform faces fines if it doesn't comply.
The Siman-Tovs were killed along with their two-year-old son, five-year-old twin daughters and the kids' 70-year-old grandmother.
'I don't eat or sleep for days now. I cannot control my emotions.'
After Justin Bieber posted an Instagram Story of a bombed Gaza with the text ‘Praying for Israel’ emblazoned over the top, it got me thinking.
'I ask the world to help the Palestinians.'
More than a third of the civilians killed in the barrages of airstrikes on Gaza since Saturday are children.
Messages written in Arabic were sent from Orión Hernández Radoux's phone.
'We stand against all acts of terrorism and brutality.'
An image of a young baby was shown at a press conference in London this afternoon.
'The BBC has fallen well below the standards...'
'There are no winners here.'
The distraught father said being kidnapped by Hamas would have been a fate worse than death.
The SKIMS founder shared a lengthy statement on Instagram.
The Football Association feared a potential backlash but will hold a minutes' silence.