Two elderly British men vacationing in Spain have died from Legionnaires disease.

A British-based vacation booking company says three others who stayed at the Diamante Beach Hotel in the eastern town of Calpe are being treated at a Spanish hospital.

The company says five other British citizens who stayed at the same hotel were treated after returning home.

All of the victims are more than 70 years old.

British officials say they are providing consular assistance to victims of the outbreak and their families.

The Telegraph newspaper says Spanish health officials have not located the source of the waterborne bacteria, which led to an outbreak last month.

They suspect more people could possibly have been infected.