Seoul (The Korea Herald/Asia News Network) - All charges except one have been dropped against actor-singer Kim Hyun Joong, who is accused of assaulting his ex-girlfriend, the local police said on Monday.

Out of the four charges that were filed by the ex-girlfriend, three were dropped after the Boys Over Flowers star apologised to her. The only charge that was forwarded to the prosecutors' office was the charge for the assault that gave the woman an injury with a two-week recovery period.

"Among the four cases that were reported, the portion of the assault charges that Kim Hyun Joong acknowledged was forwarded to the prosecutors on Sept 29," a local police spokesman said.

The apology came three weeks after the woman filed charges against Kim, accusing him of beating her on multiple occasions.

The 28-year-old idol's then girlfriend claimed he attacked her several times between late May and mid-July, which left her with bruises and broken ribs.

The violence broke out while she was arguing with Kim over "women issues" at his home in Jamsil, eastern Seoul, she said.

Kim, however, only partially admitted to the charges during the Sept 2 questioning at Songpa District Police Station in southeastern Seoul.

He acknowledged that he had used violence against the woman only once and accidentally, rejecting the accusation of "repetitive assaults" against her.