KAMPALA, Uganda (AP) _ Ugandan authorities reportedly were holding nine people, including an Austrian businessman, for questioning about bombings that killed six Valentine's Day revelers in the capital.

The government-owned New Vision newspaper said Wednesday that in addition to the Austrian, seven Ethiopians and one Ugandan were in custody.

Police spokesman Bob Ngobi said no charges had been filed against those detained.

The bombings occurred Sunday night in two bars in the Kabalagala neighborhood. Three people died immediately, and three others died later in the hospital.

The Austrian being questioned is married to the Ethiopian owner of one of the bars attacked. Police said a sniffer dog led them to his nearby home.

Police said Monday the blasts were caused by pipe bombs made of fertilizers and other chemicals. Clocks were used as timers.