Residents of the town housing Somalia's interim government are stocking up provisions as troops test weaponry before a feared attack by the Council of Islamic Courts.
Islamic Courts fighters have threatened to attack Baidoa if Ethiopian troops protecting the government do not leave by Tuesday.
Hassan Aweys, the Islamic Courts leader, said on Friday his movement did not plan to attack the Horn of Africa's interim government but only "invading" Ethiopian troops.
He said: "We do not intend to attack the government, but at the same time we are obliged to attack Ethiopians.
"Our country has been invaded by Ethiopia ... we should have thrown them out a long time ago."
Abdullahi Yusuf, Somalia's president, reacted by saying that peace talks with the Islamic Courts, who took Mogadishu in June and expanded across most of south Somalia since, are no longer an option, warning that the group is "allowing al-Qaeda terrorists to set up shop in the Horn of Africa".
He said: "This is a new chapter and part of the terror group's plan to wage war against the West."
Face-off
Adding to the sense of fear, shots rang out late on Thursday night as government forces tested their arms.
Witnesses reported seeing tracer bullets and hearing heavy artillery and gun shots echo for several minutes from the airport side of Baidoa.
Abdulkadir Adan, a Baidoa resident who heard the shots as he walked home, said: "I thought the war we are waiting for had started ... I ran back to my friend's home and spent the night there."
Ibrahim Nur, Baidoa deputy governor, confirmed the shots were only a rehearsal by government troops: "This was only a test-fire, not war."
Government forces and Islamic Courts fighters face off just 30km outside Baidoa.
Regional diplomats fear fighting could quickly spread into a regional conflict given that arch-foes Ethiopia and Eritrea are accused of supporting the government and the Islamic Courts respectively.
Possible war
In Baidoa's coffee and tea shops, possible war between the Muslim fighters and the Western-backed government dominated conversation.
Residents saw it as a matter of when rather than if war would break out, and many planned escape routes.
Baidoa has already seen two major suicide attacks, blamed by the government on al Qaeda-linked fighters joining the ranks of the Islamic Courts.
Adding to the tensions, a close relative of Colonel Abdikadir Adan, the defence minister, and two bodyguards died on Friday after an attack on their convoy in a remote village, 70km west of Baidoa.
Shire told Reuters: "We are carrying out an investigation now but we suspect the Islamic Courts are behind this."
But Abdifatah Ali, a senior Islamic Courts official, denied the report. "We are not aware of it."
Photo Caption
Somali government troops