I'm posting this here in the novae forum for follow-up. A bright transient was discovered in Scorpius at magnitude 11.1U by Koichi Nishiyama and Fujio Kabashima on 2013 June 3, and posted to CBET's Transient Objects Confirmation Page as PNV J17335943-3606216. It has been optically confirmed by Ernesto Guido and Nick Howes at 11.5U on June 3, and by Akira Takao (no date or mag).
Position measured by Nishiyama and Kabashima (J2000): 17 33 59.43 -36 06 21.6
Multicolor photometry and spectroscopic observations are requested to determine the nature of this object.
Good observing - Elizabeth Waagen, AAVSO HQ