Thousands of people have fled fighting between government troops and pro-Taleban militants in
A senior army commander said on Saturday that the army was launching a full scale offensive in the area.
Swat has been the centre of fighting which has claimed some 100 lives since hostilities began in October.
The fighting began after supporters of a pro-Taleban cleric moved to implement his version of Islamic law in the area.
Meanwhile in
Ghost towns
"Thousands of people are leaving, with whatever belongings they can carry," a local journalist in Swat told the BBC.
"I saw the entire
Locals say two other militant strongholds, Matta and Charbagh, are also rapidly becoming ghost towns.
Most of the refugees are reported to have moved to Mingora or
There were more reports of fighting on Tuesday.
Militants said they had recaptured two checkpoints they had retreated from after coming under fire from helicopter attacks.
But a military spokesman said the army was in "total command of the situation".
"The Taleban are making false claims," he said.
Locals told the BBC the positions had been re-occupied by the militants after hours of fierce fighting.
Interior ministry officials have told the BBC that 120 militants have been killed in the fighting so far.
The militants says they have killed over 30 members of the security forces.
Meanwhile, a ceasefire has been enforced by a tribal council in the nearby Kurrum tribal area which has been the scene of deadly clashes between rival Sunni and Shia sects in recent days.
'More efficient'
In
The BBC's Vincent Dowd in
A Pentagon spokesman said arming
But he said the extra funding from the
The Americans say the aim is to counter the growing strength of al-Qaeda on the Pakistan-Afghanistan border.
PHOTO CAPTION
Taleban police station sign