Survivors of the Costa Concordia cruise ship and relatives of the 32 people who died are marking the first anniversary of the vessel's grounding off the Italian island of Giglio.

The group plans a full day of ceremonies Sunday, including the unveiling of memorials to the victims, a Mass in their honor and a minute of silence to recall the exact moment the ship rammed into a reef off the coast of the historic tourist region of Tuscany.

Some rescue workers who searched the ship for weeks, initially looking for survivors, will also be honored.

The Costa Concordia, carrying 4,200 passengers and crew, capsized when its captain deviated from his planned route and struck a reef.