The Singapore Strait (simplified Chinese:新加坡海峡; traditional Chinese:星加坡海峽; pinyin:Xīnjiāpō Hǎixiá; Malay: Selat Singapura) is a 105-kilometer long, 16-kilometer wide strait between the Strait of Malacca in the west and the South China Sea in the east. Singapore is on the north of the channel and the Riau Islands are on the south. The Indonesia-Singapore border lies along the length of the straits.