of Malay support was much higher than that of the non-Malays. Malay opposition parties' vote shares in the peninsula increased drastically from about 15% in 1964 to 25% in 1969 while the support for non-Malay opposition parties remained roughly the same at 26% in both elections. Thanks to the electoral system, however, PAS seats increased from nine to 12 seats only while non-Malay opposition party, DAP, from 1 to 13. Results by state Johore Kedah Kelantan Malacca Negri Sembilan Pahang Penang Perak Perlis Sabah Sarawak Selangor Trengganu State Assemblies Aftermath Gerakan and DAP held a victory rally in Kuala Lumpur on 12 May, The rally soon turned rowdy, as party members and Malay bystanders started to shout racial epithets at each other. UMNO retaliated with its own rally on 13 May, which soon broke out into full-scale rioting, which subsequently became known as the 13 May Incident. References General elections in Malaysia Malaysia General Malaysia