Galileo 11 and 12 lifted off together at 11:51 GMT (12:51 CET, 08:51 local time) atop a Soyuz rocket from French Guiana.
“With today’s launch, Europe has doubled the number of its Galileo satellites in orbit in just nine months,” commented the Director General of ESA.
Read more here:
http://www.esa.int/Our_Activities/Navigation/The_future_-_Galileo/Launching_Galileo/Galileo_s_dozen_12_satellites_now_in_orbit