Read the text and determine if the sentence is true (see options at the end):

ISLAMABAD, PakistanMilitants attacked the Chinese consulate in the southern city of Karachi on Friday, killing two police officers, Pakistani authorities said, adding that Chinese diplomatic staff inside were unharmed. The attackers, armed with guns, grenades and at least one suicide jacket tried but failed to get inside, according to officials. Different officials described the number of attacks as between two and four. The assault started about 9.30 a.m. local time. ...

Sentence: the attackers were able to get inside
OPTIONS:
1). Yes;
2). It's impossible to say;
3). No;
3).