Yet another explosion ripped through Madrid railway station hours after a series of blasts hit it, killing at least 30 and wounding another 50 people at the height of morning rush hour.
At least four explosions were reported with one of the blasts hitting a crowded commuter train car at the capital's main Atocha train station, according to Spanish media.
The explosions were reported by witnesses at three stations -- Santa Eugenia, De El Pozo and Atocha.
The first blast at Atocha happened at 7:30 a.m. (1:30 a.m. ET) in a vacant train car, resulting in no injuries, SER reported.
Nobody has claimed responsibility for the attacks so far, but suspicions fall on the Basque separatist group, ETA, ahead of Sunday's parliamentary elections.