A 26-year-old gunman killed the wife and two daughters of a BBC commentator.
The incident took place in London, and the attacker used a crossbow as a weapon.
British police are searching for Kyle Clifford, who is suspected of killing three people, The Times reports.
While the search continues, some schools in London have imposed restrictions, including not allowing children to play on playgrounds.
Clifford attacked the family of 58-year-old BBC commentator John Hunt last night.
The journalist had another daughter who was not at home at the time of the attack. Only thanks to this she managed to escape the massacre.
The motives of the criminal have not yet been revealed. But it is known that the killer had met one of Hunt's daughters in the past.
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