The assailants were using weapons but not wielding guns . Experimental drug is exported to Liberia , spokesman says . Ebola patients fled during day 's attack in Liberia , police spokesman says . No one was injured in the attack , spokesman says .
Experimental drug is exported to Liberia , spokesman says . Ebola patients fled during day 's attack in Liberia , police spokesman says . No one was injured in the attack , spokesman says .