Many Haitians are still desperate for food and water
The EU has agreed to send a force of up to 350 police to Haiti, where law and order is precarious following the devastating earthquake.
Spanish EU officials said police from France, Italy, Spain, Portugal and the Netherlands would join the force. They will come under UN authority.
The agreement came at a meeting of EU foreign ministers on Monday.
Thousands of US troops are leading the Haiti relief effort alongside the UN, distributing emergency supplies.
There has been widespread criticism of the delays in getting food, water, medical aid and shelter to the desperate survivors.
The US has poured about 20,000 troops into the earthquake zone and the UN plans to deploy an extra 3,500 police and troops in the area.
It is believed the quake on 12 January killed as many as 200,000 people.
An estimated 1.5 million people have been left homeless.
The EU has pledged more than 400m euros (£354m) in emergency aid for Haiti.