BBC World Service moved frequency from 15735 to 15740 kHz not long ago to avoid QRM from nearby stations. Now they are getting interference from a strong & wide signal on 15745 kHz which I presume is CRI, as it is in Chinese language with typical powerhouse reception. I cannot find any listing saying what this is on 15745 kHz, but must be CRI.
Edit: Transmission on 15745 kHz ended at 1400 hrs UTC with time pips, which is typical of CNR1. Maybe they were jamming a random Sound Of Hope transmission.
Edit: Seems it was CNR1 jamming Radio Free Asia in Tibetan language. Eventually found out on ShortwaveSchedule.com.