More than 2,500 lifejackets that were actually worn by migrants who crossed from Turkey into Europe were placed in front of the U.K.’s Parliament today to raise further awareness about the global migrant and refugee crisis. The project was created by various charity and humanitarian groups to correspond with a meeting of world leaders at the U.N. to discuss the ongoing crisis.

A spokesperson for the group Women for Refugee Women, explained to Mashable, “On the day of the UN refugee summit in New York, we ask the politicians: how many more people have to die at sea?”

This year alone so far, at least 3,212 have died attempting to cross the Mediterranean Sea.