Spain on maximum alert for Eta anniversary

The leaders of Spain’s main political parties have paid tribute to two police officers killed in an explosion as security forces guarded against a fresh attack on the 50th anniversary of the founding of the armed Basque group Eta.

Authorities blame Eta for an explosion that killed the officers near a police barracks on Mallorca island on Thursday and a car bomb that wounded more than 60 in Burgos on Wednesday.