The Latest: Hamas mourns slain engineer 'commander'

GAZA CITY, Gaza Strip (AP) - The Latest on developments related to Gaza protests (all times local):

5:50 p.m.

The Hamas militant wing is suggesting that a Palestinian engineer and lecturer shot dead in Malaysia was one of its commanders.

The armed wing of Hamas has opened a mourning house in Gaza Saturday for Fadi al-Batsh.

A main banner at the entrance of the tent described al-Batsh as a member of the military wing and "a commander."

Ten masked militants in camouflage uniforms stood in a line outside the tent in Jabaliya, the slain man's hometown, to greet mourners. The ceremony is typical for senior Hamas commanders.

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3:15 p.m.

A photographer says a Palestinian teen who was killed by Israeli army fire was dozens of meters (yards) from the Gaza border fence when he was hit by a bullet.

Gaza health officials have identified Mohammed Ayyoub, either 15 or 14 years old, as one of four Palestinians killed Friday by Israeli troops firing from across the fence in the fourth round of weekly Hamas-led protests near the border.

Photographer Abed Alhakeem Abu Rish said Saturday he saw the teen standing about 150 meters (164 yards) from the fence. He says Ayyoub was about to take cover behind a low sand berm when he was shot and fell to the ground.

Abu Rish's photographs show the teen as he collapses head first and then lies motionless in the same spot.

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1:55 p.m.

The European Union has urged the Israeli military to "refrain from using lethal force against unarmed protesters," after four Palestinians, including a teen-age boy, were killed by army fire in protests along Gaza's border with Israel.

In Saturday's statement, the European Union's diplomatic service called for a full investigation of Friday's shootings.

Friday marked the fourth round of weekly mass border protests, led by Gaza's ruling Hamas group.

The marches are aimed, in part, at breaking a border blockade of Gaza enforced by Israel and Egypt since 2007, when the Islamic militant group seized the territory, a year after winning Palestinian parliament elections.

Since late March, 32 Palestinians were killed and more than 1,600 wounded by Israeli army fire in these protests, according to Gaza health officials.

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1:05 p.m.

Israel's defense minister says Gaza's Hamas rulers are the "only culprits" in the death of a Palestinian boy who was killed by Israeli army fire in protests on the Gaza-Israel border.

Avigdor Lieberman alleged on Twitter that Hamas uses women and children as human shields. His comments Saturday came after a top U.N. envoy in the region, Nikolay Mladenov, said it is "outrageous to shoot at children" and demanded an investigation.

The Israeli military has not commented on the killing of Mohammed Ayyoub. Gaza health officials initially gave his age as 15, but a local rights group, citing official documents, said he was 14.

Ayyoub was one of four Palestinians killed Friday by Israeli army fire in the fourth round of weekly border protests led by the Islamic militant Hamas.

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8:30 a.m.

Health officials say Israeli soldiers firing from across a border fence have killed four Palestinians, including a 15-year-old boy, and wounded more than 150 others as several thousand people in blockaded Gaza staged a fourth round of weekly protests on the border with Israel.

Huge black plumes of smoke from burning tires engulfed the border area on Friday. Some of the activists threw stones toward the fence or flew kites with flaming rags dangling from their tails.

The latest deaths brought to 32 the number of Palestinians killed by Israeli troops in protests since late March. More than 1,600 have been wounded by live rounds in the past three weeks, according to the Gaza Health Ministry.