Venezuelan authorities say they have arrested 14 more people in connection with an alleged attempt to assassinate President Nicolas Maduro.
Among those detained are a general and a colonel from the National Guard.
President Maduro has accused opposition politicians and neighbouring Colombia of plotting to kill him in a drone attack during a military parade in the capital Caracas on 4 August.
Chief prosecutor Tarek Saab said 12 other people were so far in detention.
Venezuela has issued 27 arrest warrants for the apparent attempt on Mr Maduro. Those arrested to date include a lawmaker and several young men.
The Venezuelan authorities say other suspects are still at large, many in neighbouring Colombia and the United States.
The Colombian government says there is no basis to Mr Maduro's allegations.
US National Security Adviser John Bolton denied any US involvement in the incident, adding that it could be "a pretext set up by the regime itself".
The country faces a deep economic crisis which has driven hundreds of thousands of Venezuelans abroad.
Many opposition leaders have already left the country citing government harassment.
There are reported to be more than 200 political prisoners in the country's jails.
In May, Mr Maduro won re-election to a second six-year term in a vote marred by an opposition boycott and claims of vote-rigging.