Two mud dome structures were sampled during Leg 160 to the Eastern Mediterranean. Pore waters from the Milano Dome indicate the presence of gas hydrates at relatively shallow depths in the sediment. The deep pore waters of the Napoli Dome indicate that gas hydrates are unlikely to be present >1 meter below seafloor (mbsf), whereas some observations from very shal- low pore waters suggest that some gas hydrates must also be present