WELLINGTON (Reuters) - A man has reportedly set himself on fire on the grounds of New Zealand’s parliament in Wellington, two days ahead of national elections, police said on Thursday. “Ambulance are with the man currently, who’s reportedly in a critical condition,” New Zealand police said in a statement, adding they have no immediate information on the man’s identity. Police told a Reuters witness that the parliament grounds have been closed off.
Can we infer the following?
The police don't know who set himself on fire at the Parliament. 
Yes