"Until expert evaluations are completed we cannot say with certainty what kind of explosive or explosive device went off," ministry spokesman Zlatko Mehun told Hina.
Mehun said that it still had not been established whether the explosive device arrived at the embassy building in the Alexander von Humboldt Street in a letter or, as speculated by the media, in a newspaper parcel. Mehun said that the investigation was also aimed at establishing the exact route of parcels and papers that arrived at the embassy yesterday.
Officials at the British Embassy did not have any new information today.
Ministry officials said they would again interview the 26-year-old Croatian national working for the embassy who sustained light injuries to his shin in yesterday's explosion. Sources at the Zagreb Accident Hospital said the man would remain in hospital for three more days because he had started taking antibiotics, which they said was normal treatment in case of such injuries.
The spokesman for the Ministry of the Interior would not comment on possible perpetrators and motives for the terrorist act.
The Zagreb police postponed their regular press conference scheduled for this morning. There was no official explanation for the postponement, but sources close to the ministry leadership said police chiefs
were busy holding meetings at which they were deciding, among other things, which information could be released to public.