Jail reports obtained by The Associated Press show four inmates in New York City have been slashed and another stabbed in the week since officials locked down four Rikers Island facilities for 34 hours.

The jail statistics obtained Wednesday by the AP show that all but one of the assaults occurred in the four facilities targeted in the operation.

Officials said they recovered 11 homemade weapons and drugs during last week's multi-facility lockdown targeting 2,000 inmates for searches.

None of the weapons recovered was a scalpel. A top jail official testified in December that the medical instrument was used in the majority of inmate slashings.

Mayor Bill de Blasio (dih BLAH'-zee-oh) is scheduled to tour Rikers on Thursday to unveil a comprehensive anti-violence plan.

His jails commissioner told reporters Tuesday the lockdown was a short-term success.