There are four commuter train lines departing from Lisbon: the Sintra, Azambuja, Cascais and Sado lines (operated by CP – Comboios de Portugal), as well as a fifth line to Setúbal (operated by Fertagus), which crosses the Tagus river via the 25 de Abril Bridge. The major railway stations are Santa Apolónia, Rossio, Gare do Oriente, Entrecampos, and Cais do Sodré.