Entry of Malaysian Police Helicopter into Singapore's Airspace in September 2021
- A Royal Malaysian Police helicopter entered Singapore's airspace over Pulau Tekong without approval on 11 September 2021, prompting the RSAF to issue warnings and scramble F-16s.
- The RSAF determined no security threat and stood down the aircraft, as it conducts over 350 such incident responses annually.
- The Ministry of Home Affairs registered concern with Malaysian authorities regarding the unauthorised entry.
- No diplomatic note of protest was mentioned, and follow-up actions were limited to standard security protocols and bilateral communication.