Dae-sung, a member of pop idol group Big Bang, is expected to undergo surgery this week due to injuries he sustained during last week's car accident.

Dae-sung, 20, had his nose and orbital bones broken in the accident that took place near Pyeongtaek, Gyeonggi Province, last Tuesday, while returning to Seoul after shooting SBS television program ''The Family Is Out!''

The van hit the guardrail as it skidded amid heavy downpours, said YG Entertainment, the group's agency.

According to press reports, doctors advised him to undergo the surgery for the bones simultaneously.

Dae-sung received first aid treatment at a nearby hospital and has been hospitalized in Seoul. Doctors required him to receive treatment for eight weeks. He was unable to appear in the musical ''Shouting'' that opened last week.

Dae-sung made his debut with Big Bang's four other members ― T.O.P., G-Dragon, Victory and Taeyang ― in 2006. Since their debut, the group has garnered fans with their stylish looks and distinctive sounds. The five members have also pursued their individual paths as well, with Dae-sung and Victory starring in musicals, Taeyang and G-Dragon releasing solo albums and T.O.P. appearing in television dramas.