1.   He said that the destruction of its gymnasium, shortly before flames were spotted, was a byproduct of attempts to penetrate the building with tear gas.

2.   Was the FBI negligent in its use of tanks at the end of the standoff to penetrate the buildings in order to insert tear gas?

3.   Weak signals sometimes fail to penetrate buildings, making a cell phone virtually useless indoors.

4.   Israeli radio reported that a group of Palestinian gunmen penetrated a building near an Israeli roadblock and opened fire on the occupants, then escaped.

5.   Israeli television said that two Palestinian gunmen penetrated a building near an Israeli roadblock and opened fire on the Israelis, some of whom were outside and some inside.

6.   Israeli radio reported that a group of Palestinian gunmen penetrated a building near an Israeli roadblock and opened fire on the occupants.

7.   None of the bullets penetrated the building and no one was injured.

8.   There was no damage inside, although heavy smoke from the fire penetrated the building.

9.   Shortly afterwards the security ministry said security forces had prevented the mob from penetrating the building.

10.   The debris alone could smoulder for days, making it difficult to penetrate the building, he said.