The Israeli government has committed more troops to the West Bank in response to Wednesday night's shootings in Tel Aviv in which four Israelis were killed.
The shootings happened in an old market area - Sarona Market - where buildings have been converted into fashionable restaurants and cafes.
Our Middle East Correspondent Geraint Vincent reports:
Warning: Contains distressing images
CCTV footage has emerged which shows the moment two gunmen opened fire at an open-air market in central Tel Aviv on Wednesday, killing four people and wounding at least six others.
Panicked diners are seen running away to escape gunfire. Some of the footage is blurred due to the distressing scenes.
Commentary from ITV News correspondent Paul Davies.
Four people killed after a pair of gunmen opened fire at a popular market in Tel Aviv on Wednesday night have been identified by Israeli police.
According to CNN, the victims were two men Michael Faiga, 58 and Idan Ben Arieh, 42, and two women Ilana Naveh, 39, and 32-year-old Mila Meshayev.
In the wake of the attack, Israel has suspended entry permits for more than 80,000 Palestinians, citing security reasons.
Israel has suspended entry permits for more than 80,000 Palestinians after two gunmen killed four people and wounded at least six others in central Tel Aviv.
There has been no claim of responsibility for the attack at an open-air market on Wednesday but the gunmen are believed to be Palestinian.
Hamas and other Palestinian militant groups have praised the attack.
Israel's Prime Minister Benjamin Netanyahu has visited the scene and described the attacks as "cold-blooded murder".
He also said the government would "take the necessary steps to attack the attackers and to defend those who need to be defended".
Prime Minister David Cameron has tweeted:
I am sickened by the appalling attack in Tel Aviv. We stand with Israel against terrorism and my thoughts are with the victims and families.
Israel's Prime Minister Benjamin Netanyahu has condemned a "savage" shooting attack in Tel Aviv which has left four people dead and at least six others wounded.
Two gunmen opened fire indiscriminately at a popular open-air market in the centre of the city.
Mr Netanyahu said his government would "take the necessary steps to attack the attackers and to defend those who need to be defended".
A hospital spokesman has confirmed that four people have died in the shooting attack in Tel Aviv.
Gil Fire, the deputy director of the Tel Aviv Sourasky Medical Centre, said ten people were taken to the centre for treatment.
Four people have "moderate to severe wounds" but are in a stable condition while two more are "in decent condition".
Two gunmen opened fire near a popular open-air market in the centre of the city.
One of the gunman is reportedly undergoing surgery in hospital after being shot by security forces and the other gunman is in custody.
Report by ITV News' Middle East Correspondent Geraint Vincent
Four of those wounded in the Tel Aviv shooting are said to be in a critical condition in hospital, it has been reported.
Three people were killed when two gunmen opened fire close to the popular open-air Sharona market in Tel Aviv.
Initial reports showed there were at least two gunmen in the Tel Aviv shooting attacks, an Israeli police spokeswoman has said.
Meirav Lapidot said both were "neutralised", which can mean either killed or detained.
Another spokeswoman Luba Samri said there were reports of shooting in two locations close to the popular open-air Sharona market.
One of the attackers is being treated in hospital, she added.
Israel has been struggling to cope with eight months of Palestinian attacks that have killed 28 Israelis and two Americans.
About 200 Palestinians have been killed during that time, most identified as attackers by Israel.
Witnesses have described the moment of terror when at least one gunman opened fire in Tel Aviv.
Three people are dead after attacks in two locations close to the popular open-air Sharona market.
Jerusalem resident Avraham Liber said it looked like one of the gunmen was sitting down at a cafe.
He said the shooter got up and started firing at point blank range at people sitting down.
Meital Sassi told Channel 10 TV she was out with her family celebrating her son's birthday when she heard shots and "immediately understood it was a terror attack".
"We ran like lightning with the baby and the stroller ... I yelled at people who didn't understand what was happening to run," she said.