PHILADELPHIA -

Hundreds of people gathered for a somber ceremony on the first anniversary of the death of six people at a Salvation Army thrift store in Philadelphia.

Addressing the families of victims and survivors under gray skies Thursday, Mayor Michael Nutter said the narrow strip of land downtown where the store stood will become a memorial park.

The city officially took possession of the property from the Salvation Army last week.

Families and friends of the victims planted the first tree in a memorial park dedicated to those who died.

Two demolition contractors are charged in the deaths. More than a dozen others were injured in the collapse.