The decrease in the number of attacks is prominent in the Jerusalem area (16 attacks compared to 42 in March) and in the Judea and Samaria (19 attacks compared to 36 in March).

Despite the decrease, two Israelis were killed in the Judea and Samaria area during April – one was killed in Jenin on April 4, another was killed near Joseph's Tomb in Nablus on April 24, and six Israelis were injured in this incident.

At the same time, there has been an increase in Gaza-based attacks: 66 attacks (as opposed to 50 in March) due to the increase in rocket launchings against Israel.
Another significant incident in April was the launching from Gaza of an AT rocket towards a school bus near Nahal Oz. The outcome of the launching was one Israeli fatality – a 16 year old boy – and one casualty (April 7). 

Data regarding terror attacks in April 2011
Following is a regional distribution of attacks:

66 attacks in the Gaza Strip (50 in March); 19 attacks in the Judea and Samaria (36 in March); and 16 attacks in Jerusalem (42 in March).

Jerusalem and the Judea and Samaria area: Most attacks executed in April (32 out of 35) were in the form of firebombs (March: 72 out of 78).

Distribution of attacks according to regions and pattern profile:

Following is a distribution of attacks in April according to regions:

The Gaza Strip – 66 attacks: 45 rocket launchings, 18 mortar shell launchings, 1 small arms shooting and 2 AT launchings.

Judea, Samaria and Jerusalem – 35 attacks: 2 small arms shooting; 1 object / stone throwing and 32 firebombs (16 in Jerusalem).

High-trajectory launchings from the Gaza Strip

Throughout April 2011, 87 rockets and 57 mortar shells were launched towards Israel (in 63 attacks) compared to 38 rockets and 87 mortar shells in March 2011 (in 47 attacks).