Singapore's Government Technology Agency launched a smartphone app TraceTogether to boost contact tracing efforts, the first such app in the world.[262][263] In addition; more social distancing measures are announced, including suspending all events and gatherings with 250 people or more with immediate effect until 30 June, ensuring 1 metre separation in public venues, and suspending all activities for seniors for another 14 days until 7 April.[264][265] A guide on safe distancing measures has also been drawn up by Enterprise Singapore and Singapore Tourism Board.[266]