According to reports, the accident has caused multiple injuries.
Tips
register
Standard journalistic opener — use 据 + source: 据新华社报道 'Xinhua reports', 据央视报道 'CCTV reports', 据外媒报道 'foreign media report.' Compare 据说 jùshuō 'it is said' (much more colloquial, hearsay) and 据悉 jùxī 'it is learned' (formal newsroom register).
grammar
Sentence-initial topicalizer — comma-set off, no subject needed. The verb after 据 is what is being relied on (报道 'reports'); think 'on the basis of [reports]'.
