In this Oct. 27, 2014, file photo, Lebanese men stand near buildings damaged due to clashes between the Lebanese army and Islamic militants in the northern port city of Tripoli, Lebanon.

n this Oct. 27, 2014 file photo, Lebanese firefighters extinguish burned shops that were attacked during clashes between the Lebanese army and Islamic militants in the northern port city of Tripoli, Lebanon. The Associated Press

In this Thursday, Nov. 20, 2014, a damaged building stands in the area where clashes between the Lebanese army and Islamic militants took place in the Tripoli slum of Bab Tabbaneh, Lebanon. The Associated Press

In this Sunday, Oct. 26, 2014 file photo, Lebanese army soldiers open fire during clashes with Islamic militants in the northern port city of Tripoli, Lebanon.

In this Thursday, Nov. 20, 2014 photo, Lebanese men reconstruct their shop that was damaged due to clashes between the Lebanese army and Islamic militants in the northern port city of Tripoli, Lebanon. The Associated Press

In this Thursday, Nov. 20, 2014, Lebanese people reconstruct their shop that was damaged due to clashes between the Lebanese army and Islamic militants in the northern port city of Tripoli, Lebanon. The Associated Press

In this Thursday, Nov. 20, 2014, a Lebanese man reconstructs his shop that was damaged due to clashes between the Lebanese army and Islamic militants in the northern port city of Tripoli, Lebanon. The Associated Press

In this Thursday, Nov. 20, 2014, a Lebanese man stands with his son on a balcony in the Tripoli slum of Bab Tabbaneh, Lebanon. The Associated Press

In this Thursday, Nov. 20, 2014, a Lebanese worker, right, reconstructs a shop that was damaged due to clashes between the Lebanese army and Islamic militants in the northern port city of Tripoli, Lebanon. The Associated Press

In this Thursday, Nov. 20, 2014, Syrian workers reconstruct a shop that was damaged due to clashes between the Lebanese army and Islamic militants in the northern port city of Tripoli, Lebanon. The Associated Press