Two small bombs exploded in tourist towns on Spain's northern coast on Saturday without causing injuries, in what appeared to be a return to violence by Basque separatists ETA after a long silence. The explosions took place around midday in the popular coastal resorts of Ribadesella and San Vicente de la Barquera after a warning to Basque separatist newspaper Gara from a caller claiming to belong to ETA. Spanish authorities warned on Friday that ETA, weakened by scores of arrests in France and Spain, could be planning a summer tourist season bombing campaign. The explosions awoke painful memories of the March 11 commuter train bombings by Islamic militants in Madrid which killed 191 people and shook the whole of Spain. "All indications point to ETA: both the explosives used and the way in which the attacks were claimed," Miguel Angel Revilla, the northern province of Cantabria's president, told Reuters. Officials said a small bomb in a lunchbox exploded on the seaside promenade of the picturesque fishing port of San Vicente de la Barquera in Cantabria, damaging only shrubbery. --More 1815 Local Time 1515 GMT
