Residential buildings stand illuminated at dusk facing Central Park in the Songdo district of Incheon, South Korea.

South Korea's economy grew at a steady pace in the first quarter, data showed on Thursday, a sign that a recovery is gaining momentum and reinforcing expectations for an interest rate hike later this year.

Asia's fourth-largest economy grew a seasonally adjusted 0.9 percent in the first quarter on a sequential basis, the central bank estimates showed, the same as in the December quarter but a touch ahead of forecasts.