At an emergency meeting of the security cabinet, Israeli Prime Minister Benjamin Netanyahu vowed a "strong, rapid, precise" response to the deadly terror attacks in Jerusalem.
The measures put forward by the leader included arming Israeli civilians and harsher measures against Palestinians complicit with perpetrators.
"We will seal and demolish terrorists' houses in an expedited fashion, in order to exact an additional price from those who supported terrorism. This process already started yesterday and is in progress," Netanyahu said.
"On behalf of all the citizens of Israel, I would like to send my heartfelt condolences to the families of those murdered in the heinous and terrible attack in our capital, Jerusalem. This is a criminal attack at the entrance of a synagogue on International Holocaust Day," he said.