ARCHIVED - Missing girls: robot finds another two oxygen bottles on seabed in Tenerife 

Searches continue at sea for traces of the younger of two sisters who disappeared in Tenerife, in the Canary Islands, almost two months ago and their father, who police believe murdered them. 

Another two oxygen bottles belonging to Tomás Gimeno, the father of two Tenerife girls who went missing while in his care on 27 April, have been found on the sea bed, the Guardia Civil has confirmed. 

The small oxygen bottles, of the type used by air force pilots if they fall into the sea, appeared at a depth of 1,000 metres, some distance from the entrance of Santa Cruz port where the older sister’s body was found earlier this month.

Investigators continue to work on the case and over the last few days, after studying the geolocation of Gimeno’s mobile phone on the night he is thought to have killed his daughters, have directed the Ángeles Alvariño search vessel further out to sea between Añaza and Radazul.

The highly equipped oceanographic vessel sent to Tenerife by the Spanish Oceanographic Institute to help with the case found the body of six-year-old Olivia inside a sports bag tied to the anchor from Gimeno's boat on 10 June, along with another empty bag.

The searchers were drawn to this area following the discovery of an oxygen bottle from the boat of Tomás Gimeno before the body was found.

Although searches will continue, with the Ángeles Alvariño remaining in the area for as long as the government sees fit and the Guardia Civil already studying how to replace it once it has to leave, the likelihood of finding further traces of one-year-old Anna and Gimeno decreases by the day.