May 7 (Reuters) - Following are security developments in Iraq at 1400 GMT on Wednesday.

* Denotes new or updated item:

* FALLUJA - A U.S. soldier was killed in an attack on his convoy in Falluja, 50 km (32 miles) west of Baghdad, on Tuesday, the U.S. military said.

* MUSSAYAB - Four guards protecting an oil pipeline were seriously wounded when a bomb exploded at a power station in Mussayab, 60 km (40 miles) south of Baghdad, police said.

AL HAY - Police imposed a curfew on the town of al-Hay, 200 km (120 miles) south of Baghdad, after clashes with militiamen loyal to Shi'ite cleric Moqtada al-Sadr during a raid on Sadr's office there, police said. Two people were wounded.

Al-NUMANIYA - Gunmen shot dead an army officer as he left his house in al-Numaniya town, 120 km (70 miles) south of Baghdad, police said.

BAGHDAD - Five people were wounded on Tuesday when a Katyusha rocket landed near the Sarafiya Bridge in central Baghdad, police said.

BAGHDAD - Three bodies were found in different areas of Baghdad on Tuesday, police said.

BAGHDAD - Three mortar rounds wounded 10 people on Tuesday when they landed on a residential area in the Jaifer area of Baghdad, police said.

YUSUFIYA - Gunmen shot dead a teacher as he left his school on Tuesday afternoon in Yusufiya, 15 km (9 miles) south of Baghdad, police said.

BAGHDAD - Iraqi special forces detained seven people suspected of mounting attacks on U.S. and Iraqi forces in Sadr City, eastern Baghdad, on Tuesday, the U.S. military said.

KIRKUK - The U.S. military said it captured a mid-level al Qaeda leader and detained another six suspects in Kirkuk province, 250 km (155 miles) north of Baghdad, on Monday.

(Compiled by Khalid al-Ansary, editing by Tim Cocks)

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