Uzbek authorities reported detaining 30 suspects amid heightened security Wednesday after two days of blasts and shootouts killed more than 40 people in Washington's key Central Asia ally.
Armoured personnel carriers and soldiers in body armour guarded the sites of the latest wave of violence as car traffic petered out in this secretive state's capital amid fears of more suicide attacks.
"There are fewer cars out on the streets - everyone has been afraid to leave their home," said taxi driver Malkhod.
Prosecutor General Rashid Kadyrov told the ITAR-TASS news agency that 30 people had been detained on suspicion of involvement in the attacks that shook the capital of Tashkent and the ancient city of Bukhara on Monday and Tuesday.
Schools and universities were ordered to remain closed Wednesday, and the border with Tajikistan remained shut for a second day.