Contrary to defendant's contention that the existence of probable cause to arrest him for possession of a stolen automobile negated the need for his showup with respect to the robbery, it is well settled that a showup identification is not improper merely because the police already have probable cause to detain a suspect ( People v Duuvon, 77 NY2d 541, 545). The showup here was the culmination of an unbroken chain of exigent events ( supra) — officers meeting with the complainants approximately 10 minutes after the robbery, and, while interviewing them, receiving a radio transmission that a possible suspect in the robbery had been apprehended, and then immediately driving the complainants to where the suspect was being detained no more than 30 blocks from the robbery location. The identification was thus clearly "proximate in time and space to the crime and the fact that defendant was handcuffed and in the presence of police officers did not render the procedure unduly suggestive" ( People v Aponte, 222 AD2d 304, 304-305). Nor do we find any prejudice in the late disclosure of the Rosario material. We have considered defendant's other arguments, including other aspects of the showup claimed to have been suggestive, and find them to be without merit.