Militants from the Popular Resistance Committees military wing address the media as they announce a temporary halt to rocket fire into Israel on Aug. 22, 2011 in Gaza City, Gaza.  (Getty Images/Christopher Furlong)

JERUSALEM — Violence along the Gaza-Israel border heated up on Wednesday, with Israeli airstrikes on militant targets and militant rocket fire at Israel.

Israeli media reported that security forces sent down reinforcements to the area.

A music festival that was to be held in the southern city of Ashkelon was cancelled, conforming with military recommendations against large gatherings in tense security times, the military said.

Israeli aircraft killed a militant from Gaza's Islamic Jihad faction before dawn on Wednesday, Hamas security officials said.

They later targeted two militants who had fired two mortars at Israel shortly before.

No casualties were reported in that airstrike.

The Israeli military said the dead militant had smuggled weapons into Gaza and was involved in militant activity in Egypt's Sinai peninsula, near Israel's southern border.

It did not elaborate.

A militant incursion into Israel from Sinai last week killed eight Israelis.

That was followed by Palestinian rocket attacks and Israeli airstrikes that have not stopped despite a cease-fire reached on Sunday.