Seoul police said Saturday they questioned an employee of Samsung Construction and Trading (C&T) over allegations of tailing the CJ Group Chairman, who is in an inheritance legal battle with his younger brother, Samsung Group Chairman Lee Kun-hee.

The summons came as CJ Group sued the 42-year-old Samsung affiliate employee, identified only by his surname Kim, for following its chief Lee Jae-hyun late last month after the chairman's father filed an inheritance suit against the Chairman of Samsung Electronics.

Lee Maeng-hee, a former CJ Group Chairman and the eldest son of the Samsung Group founder, demanded a large number of stocks he claimed the Samsung head secretly incorporated into his assets in the suit filed in mid-February.

CJ Group claimed closed-circuit television footage showed Kim circling the residence of Lee in central Seoul in different cars, accusing him of obstructing of the chairman's official duties.

Officials at the Jungbu Police Station said they asked why Kim had roamed around Lee's house and whether he attempted to shadow the chairman.

CJ Group also claimed that Samsung Group was behind the surveillance, while Samsung officials denied any link to the Samsung C&T employee's tailing the CJ Group chairman.

CJ Group separated from the larger Samsung Group in 1994 after control of the conglomerate passed to Lee Kun-hee. Industry insiders said the rift between the two business groups still runs deep. (Yonhap)