Jamming?

There was a station with lots of white noise and some carrier on 1557 KHz on the So Phisai SDR tonight (Thursday 1400 UTC).  Is this jamming or a digital signal?  Also received on the Cha-Am SDR. 
On the one hand, the Radio Taiwan International broadcasts on the same frequency.  On the other hand, when Voice of America restarted at 1430 UTC there were a few seconds of similar white noise. 
Both SDRs are in Thailand.

Liron (2024-10-24)