Some Palestinian mediators were making contacts to free the officer, Aljazeera's correspondent added.
 
Colonel Jihad Abed was abducted on the street by a group who bundled him into a car in the Bureij refugee camp, witnesses and officials said on Thursday.
  
"We are dealing with a kidnap incident but we do not know the reasons behind the abduction," a Palestinian Interior Ministry spokesman said.

"We have launched an investigation and are conducting a search operation."
  
Increasing lawlessness

Witnesses said the abductors were from the Jenin Martyrs' Brigades, whose members are mainly former members of the mainstream Fatah movement.
  
The same organisation was behind the abduction of then Palestinian police chief Ghazi Jabali in July last year in Gaza.
  
The Palestinian Authority is battling against increasing lawlessness in the occupied territories.

Two engineers from Austria and Britain were also kidnapped in Gaza earlier this month but were released unharmed within 24 hours.

Meanwhile, Muayad Musa, a member of al-Jihad al-Islami movement, was killed in clashes near Shofa village, east of Tulkarim, Israeli sources said.
 
The occupation forces sealed off the area, withheld the body of the dead activist and detained two of his brothers.

Source: Aljazeera + Agencies