Britain, France and Canada announced coordinated sanctions on Tuesday targeting trade with Israeli settlements in the occupied West Bank.

British Foreign Secretary Ed Miliband told the House of Commons that the United Kingdom would ban imports of goods from the settlements and impose sanctions on individuals and companies providing services such as construction, financing and real estate that support settlement expansion. He said the British government agrees there is ethnic cleansing of Palestinians in areas of the West Bank.

France and Canada joined the announcement, with each country pledging to end trade in goods from the settlements. The moves came alongside a joint statement from 12 nations, including Denmark, Finland, Iceland, Ireland, Norway, Poland, Portugal, Spain and Sweden, that warned of unprecedented levels of settler violence and settlement expansion threatening the two-state solution.

Israeli Foreign Minister Gideon Sa’ar responded by saying the British consulate in Jerusalem would be closed and warning of possible countermeasures against other countries involved.

The sanctions build on earlier coordinated actions by some of the same countries in June targeting networks accused of enabling settler violence. The latest steps follow Israel’s recent plans for new construction in the E1 area east of Jerusalem, which the countries described as crossing a red line.

Implementation of the British measures is expected to take six to nine months. The actions mark a significant escalation in diplomatic pressure on Israel from Western allies and come as the nations cited a rapidly deteriorating situation in the West Bank.